Fix failure of RSA accel test

Previously MD_C was auto-enabled based on the fact that ALG_RSA_PSS was
requested, but that's no longer the case since the previous commit.

We can fix this in one of two ways: either enable MD_C, or enable all
the PSA_WANT_ALG_SHA_xxx that are needed for test. Go for MD_C because
it's a single line and avoids having to enumerate a list that might grow
in the future.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
diff --git a/tests/scripts/all.sh b/tests/scripts/all.sh
index 04a1cd6..e5d3afc 100755
--- a/tests/scripts/all.sh
+++ b/tests/scripts/all.sh
@@ -1759,6 +1759,8 @@
 
     scripts/config.py -f tests/include/test/drivers/config_test_driver.h set MBEDTLS_SHA1_C
     scripts/config.py -f tests/include/test/drivers/config_test_driver.h set MBEDTLS_SHA512_C
+    # We need to define either MD_C or all of the PSA_WANT_ALG_SHAxxx.
+    scripts/config.py -f tests/include/test/drivers/config_test_driver.h set MBEDTLS_MD_C
     # We need PEM parsing in the test library as well to support the import
     # of PEM encoded RSA keys.
     scripts/config.py -f tests/include/test/drivers/config_test_driver.h set MBEDTLS_PEM_PARSE_C
@@ -1771,6 +1773,7 @@
     # Restore test driver base configuration
     scripts/config.py -f tests/include/test/drivers/config_test_driver.h unset MBEDTLS_SHA1_C
     scripts/config.py -f tests/include/test/drivers/config_test_driver.h unset MBEDTLS_SHA512_C
+    scripts/config.py -f tests/include/test/drivers/config_test_driver.h unset MBEDTLS_MD_C
     scripts/config.py -f tests/include/test/drivers/config_test_driver.h unset MBEDTLS_PEM_PARSE_C
     scripts/config.py -f tests/include/test/drivers/config_test_driver.h unset MBEDTLS_BASE64_C