[PATCH 2/2 -v2] drm: drop drm_[cm]alloc* helpers

[Michal Hocko]

As it turned out my allyesconfig on x86_64 wasn't sufficient and 0day
build machinery found a failure on arm architecture. It was clearly a
typo. Now I have pushed this to my build battery with cross arch
compilers and it passes so there shouldn't more surprises hopefully.
Here is the v2.
---