Enable psa_can_do_hash

CC312 driver want to use hash in md for entropy operations.
Enable psa_can_do_hash by directly returning 1.
This is a workaround for current cc312 driver. After switching
to new driver, this workaround is not needed.

Signed-off-by: Summer Qin <summer.qin@arm.com>

applied using:
git am modules/tee/tf-m/trusted-firmware-m/lib/ext/mbedcrypto/\
0006-Enable-psa_can_do_hash.patch

Signed-off-by: Tomi Fontanilles <tomi.fontanilles@nordicsemi.no>

Author: adeaarm

library/psa_crypto.c

@@ -288,7 +288,8 @@ static uint8_t psa_get_drivers_initialized(void)
 int psa_can_do_hash(psa_algorithm_t hash_alg)
 {
     (void) hash_alg;
-    return psa_get_drivers_initialized();
+    /* Workaround for the legacy CryptoCell driver requiring hash during init */
+    return 1; //psa_get_drivers_initialized();
 }
 
 int psa_can_do_cipher(psa_key_type_t key_type, psa_algorithm_t cipher_alg)