ARM: dts: msm: optimization to nt35521's on/off sequence

Optimize nt35521's init/uninit sequence, reduce the panel on
delay by 180ms, and reduce panel off delay by 170ms. This could
speed up display blank/unblank.

CRs-fixed: 543128
Change-Id: I4911df5b65753a2658d3585e4a16bdfa5373d44c
Signed-off-by: Ray Zhang <rayzhang@codeaurora.org>