Fix dependency in AES GCM test case

The test case was never executed.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/tests/suites/test_suite_cipher.gcm.data b/tests/suites/test_suite_cipher.gcm.data
index 8d728bd..a4cebd2 100644
--- a/tests/suites/test_suite_cipher.gcm.data
+++ b/tests/suites/test_suite_cipher.gcm.data
@@ -3,7 +3,7 @@
 dec_empty_buf:MBEDTLS_CIPHER_CAMELLIA_128_GCM:0:0
 
 AES GCM Decrypt empty buffer
-depends_on:MBEDTLS_CIPHER_AES_128_GCM:MBEDTLS_GCM_C
+depends_on:MBEDTLS_AES_C:MBEDTLS_GCM_C
 dec_empty_buf:MBEDTLS_CIPHER_AES_128_GCM:0:0
 
 Aria GCM Decrypt empty buffer