Enable PKCS7 in driver-only hashes component

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
diff --git a/tests/scripts/all.sh b/tests/scripts/all.sh
index dac32d8..35aca98 100755
--- a/tests/scripts/all.sh
+++ b/tests/scripts/all.sh
@@ -2643,7 +2643,6 @@
         scripts/config.py unset MBEDTLS_MD_C
     fi
     scripts/config.py unset MBEDTLS_HMAC_DRBG_C
-    scripts/config.py unset MBEDTLS_PKCS7_C
     scripts/config.py unset MBEDTLS_ECDSA_DETERMINISTIC
     scripts/config.py -f include/psa/crypto_config.h unset PSA_WANT_ALG_DETERMINISTIC_ECDSA