leds: leds-gpio-flash: add led gpio flash driver in def config

the led gpio flash driver is new, so need add it in defconfig
to compile it.

Change-Id: I5080f4aeefcd1353353841dd772778f7ef964c29
Signed-off-by: Tingting Yang <tingting@codeaurora.org>
diff --git a/arch/arm/configs/msm8610_defconfig b/arch/arm/configs/msm8610_defconfig
index 24c5d9c..71873ba 100644
--- a/arch/arm/configs/msm8610_defconfig
+++ b/arch/arm/configs/msm8610_defconfig
@@ -352,6 +352,7 @@
 CONFIG_MMC_SDHCI_MSM=y
 CONFIG_MMC_MSM_SPS_SUPPORT=y
 CONFIG_LEDS_QPNP=y
+CONFIG_LEDS_MSM_GPIO_FLASH=y
 CONFIG_LEDS_TRIGGERS=y
 CONFIG_SWITCH=y
 CONFIG_RTC_CLASS=y