ARM: dts: msm: Fix bus voting on trinket for emmc

High IB values of bus voting for sdcc1_ahb clock may cause
voltage corner to go high. Lowering IB values as per sdm660.

Change-Id: I97b76f253bb9d73455cc83e948523efc3f8c1bd7
Signed-off-by: Ram Prakash Gupta <rampraka@codeaurora.org>