Fix typos

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
diff --git a/include/mbedtls/build_info.h b/include/mbedtls/build_info.h
index fd61bca..0048cee 100644
--- a/include/mbedtls/build_info.h
+++ b/include/mbedtls/build_info.h
@@ -123,7 +123,7 @@
 
 /* The following blocks make it easier to disable all of TLS,
  * or of TLS 1.2 or 1.3 or DTLS, without having to manually disable all
- * key  and extensions related to them. */
+ * key exchanges, options and extensions related to them. */
 
 #if !defined(MBEDTLS_SSL_TLS_C)
 #undef MBEDTLS_SSL_CLI_C
diff --git a/include/mbedtls/check_config.h b/include/mbedtls/check_config.h
index c75640d..8ed51c2 100644
--- a/include/mbedtls/check_config.h
+++ b/include/mbedtls/check_config.h
@@ -872,12 +872,12 @@
 #if defined(MBEDTLS_SSL_TLS_C)
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
 #if !(defined(PSA_WANT_ALG_SHA_256) || defined(PSA_WANT_ALG_SHA_384))
-#error "MBEDTLS_SSL_PROTO_TLS1_2 defined, but not all prerequisites"
+#error "MBEDTLS_SSL_TLS_C defined, but not all prerequisites"
 #endif
 #else /* MBEDTLS_USE_PSA_CRYPTO */
 #if !defined(MBEDTLS_MD_C) || \
     !(defined(MBEDTLS_MD_HAVE_SHA256) || defined(MBEDTLS_MD_HAVE_SHA384))
-#error "MBEDTLS_SSL_PROTO_TLS1_2 defined, but not all prerequisites"
+#error "MBEDTLS_SSL_TLS_C defined, but not all prerequisites"
 #endif
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 #endif /* MBEDTLS_SSL_TLS_C */