Fixed issue with stricter alignment than stack in IAR

Author: geky

TESTS/mbedmicro-mbed/attributes/attributes.c

@@ -29,15 +29,15 @@ int testPacked() {
 }
 
 
+MBED_ALIGN(8)  char a;
+MBED_ALIGN(8)  char b;
+MBED_ALIGN(16) char c;
+MBED_ALIGN(8)  char d;
+MBED_ALIGN(16) char e;
+
 int testAlign() {
     int failed = 0;
 
-    MBED_ALIGN(8)  char a;
-    MBED_ALIGN(8)  char b;
-    MBED_ALIGN(16) char c;
-    MBED_ALIGN(8)  char d;
-    MBED_ALIGN(16) char e;
-
     if(((uintptr_t)&a) & 0x7){
         failed++;
     }