arm/dt:apq8074-Dragon board: Add PCM GPIO lines

The audio connection between apq8074 and BT on Dragon Board is through
AUX PCM lines. Add support for MSM GPIOs used for PCM ports on
Dragon Board.

Change-Id: If1a9737f6b25af5bc27542b9b512064b2e17f16b
Signed-off-by: Tanya Finkel <tfinkel@codeaurora.org>
board: 8974: Sensor GPIO config for Dragonboard APQ8074

The Dragonboard APQ8074 uses GPIO 94 as camera sensor GPIO.
The Dragonboard APQ8074 doesn't use GPIO 92 as camera GPIO.
The change implements run time GPIO 92 and 94 configuration
differentiation.

Change-Id: Ia99f810ed8528cc78e81d51e99bd61849b215342
Signed-off-by: Ilia Lin <ilialin@codeaurora.org>
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 <smohanad@codeaurora.org>