mmc: Enable Inline Crypto Engine clocks before programming key

Due to mmc optimizations mmc host controllers are turned off during
mmc suspend. These clocks have to be turned ON during ICE program/evict
key. In PFK based FBE there would be numerous calls to program/evict
ICE key.
The change ensure required clocks are turned on before programming
crypto key to avoid any unclocked access.
Validations done:-
1) Flash P SDM660 build and let device bootup successfully to UI.
2) adb shell getprop ro.crypto.state: encrypted
   adb shell getprop ro.crypto.type: file
3) Create files under /data and /data/misc/vold/user_key
4) Flash T build except userdata i.e. OTA to T.
5) Device able to boot successfully to UI.
6) Files created earlier got retained after flashing T build.

Change-Id: Ia1629a6b373895af42b1c724aebbe7ae6fc7de93
Signed-off-by: Pruthvi Kurada <quic_pkurada@quicinc.com>