clk: mediatek: Add MUX_FLAGS macro

This is required to mark outputs of certain MUXes as CLK_IS_CRITICAL.

Signed-off-by: Jasper Mattsson <jasu@njomotys.info>
Acked-by: Mars Cheng <mars.cheng@mediatek.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

drivers/clk/mediatek/clk-mtk.h

@@ -111,7 +111,11 @@ struct mtk_composite {
 	MUX_GATE_FLAGS(_id, _name, _parents, _reg, _shift, _width,	\
 		_gate, CLK_SET_RATE_PARENT)
 
-#define MUX(_id, _name, _parents, _reg, _shift, _width) {		\
+#define MUX(_id, _name, _parents, _reg, _shift, _width)			\
+	MUX_FLAGS(_id, _name, _parents, _reg,				\
+		  _shift, _width, CLK_SET_RATE_PARENT)
+
+#define MUX_FLAGS(_id, _name, _parents, _reg, _shift, _width, _flags) {	\
 		.id = _id,						\
 		.name = _name,						\
 		.mux_reg = _reg,					\
@@ -121,7 +125,7 @@ struct mtk_composite {
 		.divider_shift = -1,					\
 		.parent_names = _parents,				\
 		.num_parents = ARRAY_SIZE(_parents),			\
-		.flags = CLK_SET_RATE_PARENT,				\
+		.flags = _flags,				\
 	}
 
 #define DIV_GATE(_id, _name, _parent, _gate_reg, _gate_shift, _div_reg,	\