defconfig: msm8612: Enable light/proximity sensor driver STK3X1X

Add the config parameters to enable the sitronix light/proximity
sensor driver STK3X1X for msm8612

Change-Id: I4d92e95974bbdb1edd9683c83909c1458c62db03
Signed-off-by: Figo Wang <figow@codeaurora.org>
diff --git a/arch/arm/configs/msm8610-perf_defconfig b/arch/arm/configs/msm8610-perf_defconfig
index 2cfad74..f7e8554 100644
--- a/arch/arm/configs/msm8610-perf_defconfig
+++ b/arch/arm/configs/msm8610-perf_defconfig
@@ -382,3 +382,4 @@
 CONFIG_CRC_CCITT=y
 CONFIG_INPUT_KXTJ9=y
 CONFIG_MSM_RPM_RBCPR_STATS_V2_LOG=y
+CONFIG_SENSORS_STK3X1X=y
\ No newline at end of file
diff --git a/arch/arm/configs/msm8610_defconfig b/arch/arm/configs/msm8610_defconfig
index cf261d2..2a102e8 100644
--- a/arch/arm/configs/msm8610_defconfig
+++ b/arch/arm/configs/msm8610_defconfig
@@ -425,3 +425,4 @@
 CONFIG_CRC_CCITT=y
 CONFIG_INPUT_KXTJ9=y
 CONFIG_MSM_RPM_RBCPR_STATS_V2_LOG=y
+CONFIG_SENSORS_STK3X1X=y
\ No newline at end of file