[Intel-gfx] v5.19 & v6.0 stable backport request

[Jani Nikula]

Hello stable team, please backport these two commits to stable kernels
v5.19 and v6.0:

4e78d6023c15 ("drm/i915/bios: Validate fp_timing terminator presence")
d3a7051841f0 ("drm/i915/bios: Use hardcoded fp_timing size for generating LFP data pointers")

References: https://lore.kernel.org/r/fac9a564-edff-db25-20d4-7146ae2a7dc8@redhat.com

Thanks,
Jani.

-- 
Jani Nikula, Intel Open Source Graphics Center