arm/dt: msm8226: Add gpio configs to support audio on speaker

Add GPIO configs for PMIC GPIO 2, which is used to enable/disable
the external 5V supply needed by speaker. Without the 5V supply
audio playback on speaker will fail.

Change-Id: I7f0105416de3c1cf1b571d774977da2f717f838a
Signed-off-by: Bhalchandra Gajare <gajare@codeaurora.org>
4 files changed