drm: cleanup DRM_DEBUG() parameters

As DRM_DEBUG macro already prints out the __FUNCTION__ string (see
drivers/char/drm/drmP.h), it is not worth doing this again. At some
other places the ending "\n" was added.

airlied:- I cleaned up a few that this patch missed also

Signed-off-by: Dave Airlie <airlied@linux.ie>
diff --git a/drivers/char/drm/mga_drv.h b/drivers/char/drm/mga_drv.h
index 44a9e66..f6ebd24 100644
--- a/drivers/char/drm/mga_drv.h
+++ b/drivers/char/drm/mga_drv.h
@@ -249,7 +249,7 @@
 		} else if ( dev_priv->prim.space <			\
 			    dev_priv->prim.high_mark ) {		\
 			if ( MGA_DMA_DEBUG )				\
-				DRM_INFO( "%s: wrap...\n", __FUNCTION__ );	\
+				DRM_INFO( "wrap...\n");		\
 			return -EBUSY;			\
 		}							\
 	}								\
@@ -260,7 +260,7 @@
 	if ( test_bit( 0, &dev_priv->prim.wrapped ) ) {			\
 		if ( mga_do_wait_for_idle( dev_priv ) < 0 ) {		\
 			if ( MGA_DMA_DEBUG )				\
-				DRM_INFO( "%s: wrap...\n", __FUNCTION__ );	\
+				DRM_INFO( "wrap...\n");		\
 			return -EBUSY;			\
 		}							\
 		mga_do_dma_wrap_end( dev_priv );			\
@@ -280,8 +280,7 @@
 #define BEGIN_DMA( n )							\
 do {									\
 	if ( MGA_VERBOSE ) {						\
-		DRM_INFO( "BEGIN_DMA( %d ) in %s\n",			\
-			  (n), __FUNCTION__ );				\
+		DRM_INFO( "BEGIN_DMA( %d )\n", (n) );		\
 		DRM_INFO( "   space=0x%x req=0x%Zx\n",			\
 			  dev_priv->prim.space, (n) * DMA_BLOCK_SIZE );	\
 	}								\
@@ -292,7 +291,7 @@
 #define BEGIN_DMA_WRAP()						\
 do {									\
 	if ( MGA_VERBOSE ) {						\
-		DRM_INFO( "BEGIN_DMA() in %s\n", __FUNCTION__ );		\
+		DRM_INFO( "BEGIN_DMA()\n" );				\
 		DRM_INFO( "   space=0x%x\n", dev_priv->prim.space );	\
 	}								\
 	prim = dev_priv->prim.start;					\
@@ -311,7 +310,7 @@
 #define FLUSH_DMA()							\
 do {									\
 	if ( 0 ) {							\
-		DRM_INFO( "%s:\n", __FUNCTION__ );				\
+		DRM_INFO( "\n" );					\
 		DRM_INFO( "   tail=0x%06x head=0x%06lx\n",		\
 			  dev_priv->prim.tail,				\
 			  MGA_READ( MGA_PRIMADDRESS ) -			\