ARM: dts: qcom: add ICE dts node for msm8994

MSM8994 has an In-line Cryptographic Engine (ICE) dedicated
for UFS. This patch adds an ICE device node. Using ICE helps us
avoid throughput degradation while performing crypto operations
during read and write transaction.

Change-Id: I66ac845d0790fe45dd8da764f7b3c6a83163e03c
Signed-off-by: Dinesh K Garg <dineshg@codeaurora.org>