ANDROID: add drivers/leds/rgb/leds-qcom-lpg.ko to db845c module list

Add the drivers/leds/rgb/leds-qcom-lpg.ko driver to the list of modules
that the db845c build needs as it is now upstream and actually builds.

Fixes: 24e2d05d ("leds: Add driver for Qualcomm LPG")
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I5bb6ffe688c5c9fe85313d1d7302d248789508ab