ARM: dts: msm: Remove WLED short circuit properties for PM660

WLED module does not have the SC protection feature on PM660l.
Hence remove the SC properties from the WLED device tree node.

CRs-Fixed: 2071302
Change-Id: I45ea0b7581780988b51ab3665c08d8a67a3ce4d3
Signed-off-by: Kiran Gunda <kgunda@codeaurora.org>