crypto: Remove featurization of CE config register.

This change makes the configuration of ce register target
agnostic.
 -On targets where the register is xpu protected, a 0 value
is returned and the register has already been configured.
 -On targets when a non-zero value is returned, the driver
configures the register.

Change-Id: Icd1888d6d87d19c52952c27d277bb4b787d72a93
Signed-off-by: Ramesh Masavarapu <rameshm@codeaurora.org>