n_smux: add debugfs node for printing channel states

Add debugfs node that prints detailed state information
for all smux channels.

Change-Id: I727f1c53797ee317856056b8e4d9a8686940ce0f
Signed-off-by: Brent Hronik <bhronik@codeaurora.org>
Signed-off-by: Angshuman Sarkar <angshuman@codeaurora.org>
Signed-off-by: Eric Holmberg <eholmber@codeaurora.org>

Conflicts:
	drivers/tty/n_smux.c
msm: rotator: clear rotator bus scale handler

rotator bus client will be not registered again without handler reset.

Change-Id: Id35c4e5ad481d0a4401bdb3ee4628ffa9a891467
Signed-off-by: Huaibin Yang <huaibiny@codeaurora.org>

Conflicts:
	drivers/char/msm_rotator.c
msm: board-8930: Vote for higher bandwidth on 8930AB

The 8930AB clock plan supports DDR@600MHz. Update the graphics
bandwidth vote to use this higher frequency on 8930AB.

Change-Id: I8891ecdb202b335f8fe43a663616a4745167d252
Signed-off-by: Lynus Vaz <lvaz@codeaurora.org>
(cherry picked from commit 4f3182e8bf55675d0a82c5bc87fcedb2f277e1d9)

Conflicts:
	arch/arm/mach-msm/board-8930-gpu.c