gpiomux-8974: Add EPM GPIO markers
gpiomux-8974: Add EPM GPIO markers

EPM GPIO markers can be used by clients to set
start/stop events to measure current consumption.

Change-Id: Ie14b8d8292892b8650c96e42a3d6ed30b7055d90
Signed-off-by: Siddartha Mohanadoss <9c97603a3a6be1a8a5dd7a9c9672e79ad0487bf3@codeaurora.org>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas