tests/graw: raw -> graw

for consistency
diff --git a/src/gallium/SConscript b/src/gallium/SConscript
index ed4d217..02e6ea7 100644
--- a/src/gallium/SConscript
+++ b/src/gallium/SConscript
@@ -25,4 +25,4 @@
 
 if platform != 'embedded':
 	SConscript('tests/unit/SConscript')
-	SConscript('tests/raw/SConscript')
+	SConscript('tests/graw/SConscript')