[IPU] Fix a gcc failure with c+0x standard

Note: What I understand some define use the minus symbol and so gcc does a sign extension on 32bits.
    Not compatible with u16...

To fix it I kept only the first 16bits. We could also redefine the constant without the minus


git-svn-id: http://pcsx2.googlecode.com/svn/trunk@3487 96395faa-99c1-11dd-bbfe-3dabce05a288

pcsx2/IPU/yuv2rgb.cpp

@@ -54,7 +54,7 @@ void yuv2rgb_reference(void)
 // Know the specification before you touch it.
 #define SSE_BYTES(x) {x, x, x, x, x, x, x, x, x, x, x, x, x, x, x, x}
 #define SSE_WORDS(x) {x, x, x, x, x, x, x, x}
-#define SSE_COEFFICIENTS(x) SSE_WORDS((x)<<2)
+#define SSE_COEFFICIENTS(x) SSE_WORDS(((x)<<2) && 0xFFFF)
 
 struct SSE2_Tables
 {