clk: rockchip: fix the rv1108 clk_mac sel register description

The source clock ordering is wrong, as shown in the TRM:
cru_sel24_con[8]
rmii_extclk_sel
clock source select control register
1'b0: from internal PLL
1'b1: from external IO
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Reviewed-by: David Wu <david.wu@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

drivers/clk/rockchip/clk-rv1108.c

@@ -140,7 +140,7 @@ PNAME(mux_pll_src_dpll_gpll_usb480m_p)	= { "dpll", "gpll", "usb480m" };
 PNAME(mux_uart0_p)		= { "uart0_src", "uart0_frac", "xin24m" };
 PNAME(mux_uart1_p)		= { "uart1_src", "uart1_frac", "xin24m" };
 PNAME(mux_uart2_p)		= { "uart2_src", "uart2_frac", "xin24m" };
-PNAME(mux_sclk_mac_p)		= { "ext_gmac", "sclk_mac_pre" };
+PNAME(mux_sclk_mac_p)		= { "sclk_mac_pre", "ext_gmac" };
 PNAME(mux_i2s0_pre_p)		= { "i2s0_src", "i2s0_frac", "ext_i2s", "xin12m" };
 PNAME(mux_i2s_out_p)		= { "i2s0_pre", "xin12m" };
 PNAME(mux_i2s1_p)		= { "i2s1_src", "i2s1_frac", "dummy", "xin12m" };