Documentation: arm/dt: corrections in msm_qpic_nand.txt

Leading zeros in register offsets is not acceptable
while naming device nodes in device tree. Fix this in
msm_qpic_nand.txt device tree binding.

Change-Id: Iab8f339b8e98d06c5197b794640fddca0e153960
Signed-off-by: Sujit Reddy Thumma <sthumma@codeaurora.org>