clk: imx: add hw API imx_clk_hw_mux2_flags

Introduce hw based API imx_clk_hw_mux2_flags, then we could
convert i.MX8MN clk driver to use hw based APIs.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

drivers/clk/imx/clk.h

@@ -435,6 +435,16 @@ static inline struct clk *imx_clk_mux_flags(const char *name,
 			&imx_ccm_lock);
 }
 
+static inline struct clk_hw *imx_clk_hw_mux2_flags(const char *name,
+		void __iomem *reg, u8 shift, u8 width,
+		const char * const *parents,
+		int num_parents, unsigned long flags)
+{
+	return clk_hw_register_mux(NULL, name, parents, num_parents,
+			flags | CLK_SET_RATE_NO_REPARENT | CLK_OPS_PARENT_ENABLE,
+			reg, shift, width, 0, &imx_ccm_lock);
+}
+
 static inline struct clk *imx_clk_mux2_flags(const char *name,
 		void __iomem *reg, u8 shift, u8 width,
 		const char * const *parents,