Make the number of fragment inputs configurable.

Change-Id: I2c618c03d00718951907e81fcd600155751aac89
Reviewed-on: https://swiftshader-review.googlesource.com/5385
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>
diff --git a/src/Shader/SetupRoutine.cpp b/src/Shader/SetupRoutine.cpp
index 630fbf4..ab7176b 100644
--- a/src/Shader/SetupRoutine.cpp
+++ b/src/Shader/SetupRoutine.cpp
@@ -455,7 +455,7 @@
 				*Pointer<Float4>(primitive + OFFSET(Primitive,z.C), 16) = C;
 			}
 
-			for(int interpolant = 0; interpolant < 10; interpolant++)
+			for(int interpolant = 0; interpolant < MAX_FRAGMENT_INPUTS; interpolant++)
 			{
 				for(int component = 0; component < 4; component++)
 				{