drm/msm/adreno: Remove CONFIG_OF checks

Remove CONFIG_OF checks in adreno_device.c. The downstream bus scaling
stuff is included only when CONFIG_OF is not set. So, remove that too.

Change-Id: Ic0dedbadbd39970667e7ab745c4b276690a0b0d7
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Git-commit: 66a42f8586897c3a95ac2fef5e2ee1e69da695c8
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git


Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>