core: arm: ree_fs: fix free hash_ctx
core: arm: ree_fs: fix free hash_ctx

Properly free hash_ctx by calling crypto_hash_free_ctx
instead of the generic free function.

Signed-off-by: Silvano di Ninno <e5a09fb35801825e18422339fe965143aff0caee@nxp.com>
Reviewed-by: Joakim Bech <741f90e2a7f4d9afbad8bd50be20560f4cf38962@linaro.org>

pascal-brand-st-dev/optee_os,pascal-brand-st-dev/optee_os,pascal-brand-st-dev/optee_os,pascal-brand-st-dev/optee_os,pascal-brand-st-dev/optee_os