sha: fix minor issues/typos

Signed-off-by: Valerio Setti <vsetti@baylibre.com>
diff --git a/programs/test/selftest.c b/programs/test/selftest.c
index de1ee0f..b4701cb 100644
--- a/programs/test/selftest.c
+++ b/programs/test/selftest.c
@@ -244,13 +244,13 @@
     {"sha1", mbedtls_sha1_self_test},
 #endif
 #if defined(MBEDTLS_SHA224_C)
-    {"sha256", mbedtls_sha224_self_test},
+    {"sha224", mbedtls_sha224_self_test},
 #endif
 #if defined(MBEDTLS_SHA256_C)
     {"sha256", mbedtls_sha256_self_test},
 #endif
 #if defined(MBEDTLS_SHA384_C)
-    {"sha512", mbedtls_sha384_self_test},
+    {"sha384", mbedtls_sha384_self_test},
 #endif
 #if defined(MBEDTLS_SHA512_C)
     {"sha512", mbedtls_sha512_self_test},