ARM: dts: MSM: Remove entry for flash1 on 8x26

Remove redundant node of flash1 from device tree because
8x26 devices have only one flash LED.

CRs-fixed: 591883
Change-Id: I1912f7f7783c6d024f8945798cd413c63c771e1f
Signed-off-by: Himanshu Aggarwal <haggarwa@codeaurora.org>