target: msm8952: Configure volume up key for 8937

set gpio values for volume up key.

Change-Id: I6c3fdb59155961ba27359104ef4d8578ed2b2cd2
diff --git a/target/msm8952/init.c b/target/msm8952/init.c
index 88889d1..2b19610 100644
--- a/target/msm8952/init.c
+++ b/target/msm8952/init.c
@@ -77,6 +77,7 @@
 #define PMIC_ARB_OWNER_ID       0
 #define TLMM_VOL_UP_BTN_GPIO    85
 #define TLMM_VOL_UP_BTN_GPIO_8956 113
+#define TLMM_VOL_UP_BTN_GPIO_8937 91
 
 #define FASTBOOT_MODE           0x77665500
 #define RECOVERY_MODE           0x77665502
@@ -184,7 +185,8 @@
 
 	if(platform_is_msm8956())
 		vol_up_gpio = TLMM_VOL_UP_BTN_GPIO_8956;
-
+	else if(platform_is_msm8937())
+		vol_up_gpio = TLMM_VOL_UP_BTN_GPIO_8937;
 	else
 		vol_up_gpio = TLMM_VOL_UP_BTN_GPIO;