feat(st-crypto): remove BL32 HASH driver usage

Remove unused mode for HASH driver. The driver will only be
used in BL2 scope.

Change-Id: I1fce09cdaa9da0c11554ac5f73433b4bee776011
Signed-off-by: Lionel Debieve <lionel.debieve@foss.st.com>
1 file changed