checkpatch: ignore MULTISTATEMENT_MACRO_USE_DO_WHILE

Ignore yet another macro rule. We have many multistatement macros
in-tree which do not use do { ... } while().

Signed-off-by: Henrik Brix Andersen <[email protected]>

Author: henrikbrixandersen

.checkpatch.conf

@@ -26,4 +26,5 @@
 --ignore DT_SCHEMA_BINDING_PATCH
 --ignore TRAILING_SEMICOLON
 --ignore COMPLEX_MACRO
+--ignore MULTISTATEMENT_MACRO_USE_DO_WHILE
 --exclude ext