clk: vc3: Make vc3_clk_mux enum values based on vc3_clk enum values

Make vc3_clk_mux enum values depend upon vc3_clk enum values to avoid
any accidental breakage in the future.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20230824104812.147775-5-biju.das.jz@bp.renesas.comReviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

drivers/clk/clk-versaclock3.c

@@ -118,14 +118,6 @@ enum vc3_div {
 	VC3_DIV5,
 };
 
-enum vc3_clk_mux {
-	VC3_SE1_MUX,
-	VC3_SE2_MUX,
-	VC3_SE3_MUX,
-	VC3_DIFF1_MUX,
-	VC3_DIFF2_MUX,
-};
-
 enum vc3_clk {
 	VC3_REF,
 	VC3_SE1,
@@ -135,6 +127,14 @@ enum vc3_clk {
 	VC3_DIFF2,
 };
 
+enum vc3_clk_mux {
+	VC3_SE1_MUX = VC3_SE1 - 1,
+	VC3_SE2_MUX = VC3_SE2 - 1,
+	VC3_SE3_MUX = VC3_SE3 - 1,
+	VC3_DIFF1_MUX = VC3_DIFF1 - 1,
+	VC3_DIFF2_MUX = VC3_DIFF2 - 1,
+};
+
 struct vc3_clk_data {
 	u8 offs;
 	u8 bitmsk;