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/i915_mem.c b/drivers/char/drm/i915_mem.c
index d360896..6126a60 100644
--- a/drivers/char/drm/i915_mem.c
+++ b/drivers/char/drm/i915_mem.c
@@ -276,7 +276,7 @@
 	struct mem_block *block, **heap;
 
 	if (!dev_priv) {
-		DRM_ERROR("%s called with no initialization\n", __FUNCTION__);
+		DRM_ERROR("called with no initialization\n");
 		return -EINVAL;
 	}
 
@@ -314,7 +314,7 @@
 	struct mem_block *block, **heap;
 
 	if (!dev_priv) {
-		DRM_ERROR("%s called with no initialization\n", __FUNCTION__);
+		DRM_ERROR("called with no initialization\n");
 		return -EINVAL;
 	}
 
@@ -342,7 +342,7 @@
 	struct mem_block **heap;
 
 	if (!dev_priv) {
-		DRM_ERROR("%s called with no initialization\n", __FUNCTION__);
+		DRM_ERROR("called with no initialization\n");
 		return -EINVAL;
 	}
 
@@ -366,7 +366,7 @@
 	struct mem_block **heap;
 
 	if ( !dev_priv ) {
-		DRM_ERROR( "%s called with no initialization\n", __FUNCTION__ );
+		DRM_ERROR( "called with no initialization\n" );
 		return -EINVAL;
 	}