clk: mediatek: Export clk_ops structures to modules

modpost complains once these drivers become modules.

 ERROR: modpost: "mtk_mux_gate_clr_set_upd_ops" [drivers/clk/mediatek/clk-mt6779.ko] undefined!

Let's just export them.

Cc: Hanks Chen <hanks.chen@mediatek.com>
Cc: Wendell Lin <wendell.lin@mediatek.com>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Miles Chen <miles.chen@mediatek.com>
Fixes: 32b028fb ("clk: mediatek: support COMMON_CLK_MEDIATEK module build")
Link: https://lore.kernel.org/r/20210915015540.1732014-1-sboyd@kernel.orgSigned-off-by: Stephen Boyd <sboyd@kernel.org>

drivers/clk/mediatek/clk-mux.c

@@ -121,6 +121,7 @@ const struct clk_ops mtk_mux_clr_set_upd_ops = {
 	.get_parent = mtk_clk_mux_get_parent,
 	.set_parent = mtk_clk_mux_set_parent_setclr_lock,
 };
+EXPORT_SYMBOL_GPL(mtk_mux_clr_set_upd_ops);
 
 const struct clk_ops mtk_mux_gate_clr_set_upd_ops  = {
 	.enable = mtk_clk_mux_enable_setclr,
@@ -129,6 +130,7 @@ const struct clk_ops mtk_mux_gate_clr_set_upd_ops  = {
 	.get_parent = mtk_clk_mux_get_parent,
 	.set_parent = mtk_clk_mux_set_parent_setclr_lock,
 };
+EXPORT_SYMBOL_GPL(mtk_mux_gate_clr_set_upd_ops);
 
 static struct clk *mtk_clk_register_mux(const struct mtk_mux *mux,
 				 struct regmap *regmap,