drm/amd/display: Fix by adding FPU protection for dcn30_internal_validate_bw

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PT-2022-29610

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.16.20 Description The issue is related to the lack of FPU protection for dcn30 internal validate bw in the drm/amd/display component. The actual impact and attack plausibility have not yet been proven...

PT-2022-29265

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.17.3 Description The issue is related to the lack of FPU protection for dcn30 internal validate bw in the drm/amd/display component. The actual impact and attack plausibility have not yet been proven...