defconfig: msm8960: back light control support

adds the back light control support for 8960

Signed-off-by: Nagamalleswararao Ganji <nganji@codeaurora.org>
diff --git a/arch/arm/configs/msm8960_defconfig b/arch/arm/configs/msm8960_defconfig
index c5d4d61..1bfd83d 100644
--- a/arch/arm/configs/msm8960_defconfig
+++ b/arch/arm/configs/msm8960_defconfig
@@ -270,6 +270,8 @@
 CONFIG_FB_MSM_OVERLAY=y
 CONFIG_FB_MSM_MIPI_TOSHIBA_VIDEO_WSVGA_PT_PANEL=y
 CONFIG_FB_MSM_HDMI_MSM_PANEL=y
+CONFIG_BACKLIGHT_LCD_SUPPORT=y
+CONFIG_BACKLIGHT_CLASS_DEVICE=y
 CONFIG_SOUND=y
 CONFIG_SND=y
 CONFIG_SND_DYNAMIC_MINORS=y