use correct matrix type for perspective

Author: WinterMute

graphics/gx/acube/source/acube.c

@@ -59,7 +59,7 @@ int main( int argc, char **argv ){
 //---------------------------------------------------------------------------------
 	f32 yscale;
 	u32 xfbHeight;
-	Mtx v,p; // view and perspective matrices
+	Mtx44 v,p; // view and perspective matrices
 	GXColor background = {0, 0, 0, 0xff};
 
 	// init the vi. setup frame buffer and set the retrace callback

graphics/gx/texturetest/source/texture.c

@@ -59,7 +59,7 @@ void movecamera(float speed);
 
 
 int main() {
-	Mtx v,p; // view and perspective matrices
+	Mtx44 v,p; // view and perspective matrices
 	GXColor background = {0, 0, 0, 0xff};
 
 	VIDEO_Init();

graphics/gx/triangle/source/triangle.c

@@ -29,7 +29,7 @@ static void	copy_buffers(u32 unused);
 int	main(void)
 {
 	Mtx	view;
-	Mtx	projection;
+	Mtx44	projection;
 	PADStatus pads[4];
 	GXColor	backgroundColor	= {0, 0, 0,	255};
 	void *fifoBuffer = NULL;