ARM: dts: msm: use ordered workqueue only when specified

Use alloc_ordered_workqueue function to queue work only
when specified from the dtsi node for the corresponding led.

Change-Id: Ie5e1763f48cd6455b6afcb7fbee44bf15449810c
Signed-off-by: Abinaya P <abinayap@codeaurora.org>
Signed-off-by: Mao Li <maol@codeaurora.org>