leds: leds-qpnp: Add blink sysfs entry support

Add support for blink entry.  When blink entry is used,
switch to LPG mode if not already in LPG mode, and switch
back when blink is done.

Change-Id: Id32e50f8484628bbf2ecc15e13cafa0dfee84829
Signed-off-by: Amy Maloche <amaloche@codeaurora.org>
2 files changed