Rename boolean functions to be clearer
diff --git a/library/gcm.c b/library/gcm.c
index a347c06..f84511a 100644
--- a/library/gcm.c
+++ b/library/gcm.c
@@ -126,7 +126,7 @@
 
 #if defined(MBEDTLS_AESNI_C) && defined(MBEDTLS_HAVE_X86_64)
     /* With CLMUL support, we need only h, not the rest of the table */
-    if( mbedtls_aesni_supports( MBEDTLS_AESNI_CLMUL ) )
+    if( mbedtls_aesni_has_support( MBEDTLS_AESNI_CLMUL ) )
         return( 0 );
 #endif
 
@@ -216,7 +216,7 @@
     uint64_t zh, zl;
 
 #if defined(MBEDTLS_AESNI_C) && defined(MBEDTLS_HAVE_X86_64)
-    if( mbedtls_aesni_supports( MBEDTLS_AESNI_CLMUL ) ) {
+    if( mbedtls_aesni_has_support( MBEDTLS_AESNI_CLMUL ) ) {
         unsigned char h[16];
 
         PUT_UINT32_BE( ctx->HH[8] >> 32, h,  0 );