leds: leds-qpnp: disable safety timer

Disable safety timer if current is below a threshold for dual led control.

Change-Id: I297244b0f33a5c38d3931b49b88e4e84fd671b99
Signed-off-by: Xu Han <hanxu@codeaurora.org>
Merge "leds: leds-qpnp: disable safety timer" into LNX.LA.3.2.5.1