powerpc/tools/checkpatch: Ignore DT_SPLIT_BINDING_PATCH

From what I've seen, every time this warning comes up it's bogus,
so let's ignore it.
Signed-off-by: Russell Currey <ruscur@russell.cc>
Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/tools/checkpatch.sh

@@ -19,4 +19,5 @@ exec $script_base/../../../scripts/checkpatch.pl \
 	--ignore GLOBAL_INITIALISERS \
 	--ignore LINE_SPACING \
 	--ignore MULTIPLE_ASSIGNMENTS \
+	--ignore DT_SPLIT_BINDING_PATCH \
 	$@