oprofile: Fix build in ISO C++11 mode

Fixes macro constructs that can be confused with the new
string literals

Signed-off-by: Bernhard Rosenkraenzer <Bernhard.Rosenkranzer@linaro.org>

Conflicts:
	opcontrol/opcontrol.cpp

Change-Id: I371d3f13e181d48423bbe8b18117fb2509b5127a