Work around some gcc 4.4 strict-aliasing warnings

gcc 4.4 ends up generating strict-aliasing warnings about some very common
networking socket uses that do not really result in a real problem and
cannot be easily avoided with union-based type-punning due to struct
definitions including another struct in system header files. To avoid having
to fully disable strict-aliasing warnings, provide a mechanism to hide the
typecast from aliasing for now. A cleaner solution will hopefully be found
in the future to handle these cases.

src/utils/common.c

@@ -325,3 +325,9 @@ const char * wpa_ssid_txt(const u8 *ssid, size_t ssid_len)
 	}
 	return ssid_txt;
 }
+
+
+void * __hide_aliasing_typecast(void *foo)
+{
+	return foo;
+}