defconfig: msm8994: compile UFS ICE for encryption acceleration

This change sets the compilation flag for compiling ufs_qcom_ice
for enabling ICE support in the UFS driver.
The Inline Crypto Engine (ICE) is used to accelerate crypto operations
for storage needs and is required in order to maintain the UFS
high performance.

Change-Id: Ia6b883e4f43eebed08e93ed4a5e0134e8a28d35c
Signed-off-by: Maya Erez <merez@codeaurora.org>