drm/cirrus-qemu: Validate BAR0 size during probe

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/gpu/drm/tiny/cirrus-qemu.c"
                    ],
                    "versions": [
                        {
                            "version": "ab3e023b1b4c9887c9f0f761b47f3f0516bd3434",
                            "lessThan": "2a0e7bcff3fa63e7309d2b39e18af59eb8ef2b6e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ab3e023b1b4c9887c9f0f761b47f3f0516bd3434",
                            "lessThan": "0b5084a1f070ad1fc34e11945644ae034bbc774c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ab3e023b1b4c9887c9f0f761b47f3f0516bd3434",
                            "lessThan": "26bd90c886218f36c9adeab206b0e27b4384e2f6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ab3e023b1b4c9887c9f0f761b47f3f0516bd3434",
                            "lessThan": "144f51cd0ccc3ad47a6099917b7bb535611fb18f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ab3e023b1b4c9887c9f0f761b47f3f0516bd3434",
                            "lessThan": "92312d333bf700798f92f30406c721bce87506f3",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                }

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/gpu/drm/tiny/cirrus-qemu.c"
                    ],
                    "versions": [
                        {
                            "version": "5.2",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.2",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.158",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.111",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.53",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.7",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }