gl_code.cpp: Remove a DOS style newline

Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
frameworks/native: Fix build with ISO C++11 compilers

Fix few more macro definitions so they can't be confused with
C++11 string literals

Change-Id: I8d18acd12341306436cd5037d05eaef1563c1bc8
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>