msm: board-8064: Add GPIO controlled external regulators

Add support for the external 3.3 V and 5.0 V regulators which are
present on APQ8064 boards.  The 3.3 V regulator is enabled via
MSM GPIO 77 and the 5.0 V regulator is enabled via PMIC 8921
MPP 7.

Change-Id: I01d373e2a607b55e0cf66062cd1a04f4946d8f11
Signed-off-by: David Collins <collinsd@codeaurora.org>
diff --git a/arch/arm/mach-msm/board-8064-pmic.c b/arch/arm/mach-msm/board-8064-pmic.c
index 7b12f97..03a89a3 100644
--- a/arch/arm/mach-msm/board-8064-pmic.c
+++ b/arch/arm/mach-msm/board-8064-pmic.c
@@ -109,6 +109,8 @@
 
 /* Initial PM8XXX MPP configurations */
 static struct pm8xxx_mpp_init pm8xxx_mpps[] __initdata = {
+	/* External 5V regulator enable; shared by HDMI and USB_OTG switches. */
+	PM8921_MPP_INIT(7, D_INPUT, PM8921_MPP_DIG_LEVEL_VPH, DIN_TO_INT),
 };
 
 void __init apq8064_pm8xxx_gpio_mpp_init(void)