drm fixes for 5.4-rc6

amdgpu:
- clang alignment fixes
- Updated golden settings
- navi: gpuvm, sdma and display fixes
- Freesync fix
- Gamma fix for DCN
- DP dongle detection fix
- vega10: Fix for undervolting

radeon:
- reenable kexec fix for ppc

scheduler:
- set an error if hw job failed

i915:
- fix PCH reference clock for HSW/BDW
- TGL display PLL doc fix

panfrost:
- warning fix
- runtime pm fix
- bad pointer dereference fix

v3d:
- memleak fix

etnaviv:
- memory corruption fix
- deadlock fix
- reintroduce lost debug message
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