ARM: dts: msm: Add max and min ICE clocks to sdhci_1 of 8996

This is needed to scale up/down the ICE clock during runtime
as per the load on eMMC.

Change-Id: I005fa166b1b58112a0466e9e6100a9770195649f
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>