Add whitespace between the string literal and the macro

Add whitespace between the string literal and the macro

- The C++11 "user-defined literals" feature allows custom suffixes to be added to literals.
  This means that code relying on string concatenation of string literals
  and macros might fail to compile.
- To fix the code to compile in C++11 add whitespace
  between the string literal and the macro.

Change-Id: I09ae5b698fbb59f55120e4b26f5d1f97eeb82130
Signed-off-by: Seoyeon Kim <seoyeon2.kim@samsung.com>