RISC-V: KVM: Fix PMU event info array size overflow

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/riscv/kvm/vcpu_pmu.c"
                    ],
                    "versions": [
                        {
                            "version": "e309fd113b9f6c34672a487be08fecb7e12e7e29",
                            "lessThan": "ddbd71a3780942918a7d116d666313e5b3304d73",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e309fd113b9f6c34672a487be08fecb7e12e7e29",
                            "lessThan": "82088f88c96b99c27a974d09b02c2b133262fadf",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e309fd113b9f6c34672a487be08fecb7e12e7e29",
                            "lessThan": "735bc20c24187ca419c9d5e63860a54b91be34bd",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                }

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/riscv/kvm/vcpu_pmu.c"
                    ],
                    "versions": [
                        {
                            "version": "6.18",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.18",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.57",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.4",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }