msm: sde: rot: return probe defer for rot fs enable failure

Return probe defer error for rotator footswitch
enable failure case. The clock enable calls with
footswitch enable failure is not allowed because it
won't be able to turn on ROT clock or access the registers.

Change-Id: If99885da842fea3f49c025379b051f49a5dfebbf
Signed-off-by: Dhaval Patel <pdhaval@codeaurora.org>