Revert "ext4: speed up truncate/unlink by not using bforget() unless needed"

This reverts commit aa7da85333ce3939891c50678159beff4ad3879f.
defconfig: fix volume keys by re-enabling input drivers
video: mdss: Enable CABC controls for display panel

 * Imported from Oppo, refactored for sanity
 * Update backlight driver (PWM control)

Change-Id: Ie59adf78b4a20de6ad17dc8a2d481dad971e8cde

Conflicts:
	drivers/video/backlight/lm3630_bl.c
	drivers/video/msm/mdss/mdss_dsi_panel.c
	drivers/video/msm/mdss/mdss_panel.h
video: mdss: Fix usage of clock apis in CABC code

Change-Id: I0afc771dfcf48622512ebc774b2c1808ad224f70
Revert "mmc: core: disable crc check"

This reverts commit 2b38c3585f622ce1e0ba43fbaaea42bd8a3911bd.
Revert "block: disable add_random for more performance on SSD's"

This reverts commit 0942412bf2abbb0623265e21b2bd6afba129e3e0.
GPU: start at 200MHz instead of 320MHz

Thank you to flar2