retarget - fix uvisor header inclusion

Author: 0xc0170

hal/common/retarget.cpp

@@ -480,10 +480,9 @@ extern "C" WEAK void __cxa_pure_virtual(void) {
 #endif
 
 #if defined(TOOLCHAIN_GCC)
-/* uVisor wraps malloc_r, realloc_r and free_r, but not calloc_r! */
-#ifndef  FEATURE_UVISOR
-
 
+#ifdef  FEATURE_UVISOR
+#include "uvisor-lib/uvisor-lib.h"
 #endif/* FEATURE_UVISOR */