Prevent inlining of the StereoVolumeControlSSE_impl::calculateBlock method

This resolves FTBFS with GCC7

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
(cherry picked from commit 81449b86f6)

noatun/library/noatunarts/StereoVolumeControl_impl.cpp

@@ -71,7 +71,7 @@ public:
 	void percent(float p) { mPercent=p; }
 	float percent() { return mPercent; }
 
-	void calculateBlock(unsigned long samples)
+	void calculateBlock(unsigned long samples) __attribute__((noinline))
 	{
 #ifdef HAVE_X86_SSE
 		float *left=inleft;