msm8930: add native support of mpu3050 gyroscope

This is the alternative when DSPS sensor support is not available

Change-Id: I07c866f8353d18c5c809218c0b9583e22ed9bd2f
Signed-off-by: Wentao Xu <wentaox@codeaurora.org>
diff --git a/arch/arm/mach-msm/board-8930.h b/arch/arm/mach-msm/board-8930.h
index e564aff..925de45 100644
--- a/arch/arm/mach-msm/board-8930.h
+++ b/arch/arm/mach-msm/board-8930.h
@@ -138,5 +138,6 @@
 #define MSM_8930_GSBI4_QUP_I2C_BUS_ID 4
 #define MSM_8930_GSBI9_QUP_I2C_BUS_ID 0
 #define MSM_8930_GSBI10_QUP_I2C_BUS_ID 10
+#define MSM_8930_GSBI12_QUP_I2C_BUS_ID 12
 
 extern struct msm_rtb_platform_data msm8930_rtb_pdata;