mips: ath79: Use AR933X_PLL_SWITCH_CLOCK_CONTROL_REG macro define

Add AR933X_PLL_SWITCH_CLOCK_CONTROL_REG define for ar933x chip.
Signed-off-by: NWills Wang <wills.wang@live.com>

arch/mips/mach-ath79/include/mach/ar71xx_regs.h

@@ -331,6 +331,7 @@
 #define AR933X_PLL_CPU_CONFIG_REG			0x00
 #define AR933X_PLL_CLK_CTRL_REG				0x08
 #define AR933X_PLL_DITHER_FRAC_REG			0x10
+#define AR933X_PLL_SWITCH_CLOCK_CONTROL_REG		0x24
 
 #define AR933X_PLL_CPU_CONFIG_NINT_SHIFT		10
 #define AR933X_PLL_CPU_CONFIG_NINT_MASK			0x3f

arch/mips/mach-ath79/reset.c

@@ -89,7 +89,7 @@ static int eth_init_ar933x(void)
 	mdelay(10);
 
 	/* Get Atheros S26 PHY out of reset. */
-	clrsetbits_be32(pregs + AR934X_PLL_SWITCH_CLOCK_CONTROL_REG,
+	clrsetbits_be32(pregs + AR933X_PLL_SWITCH_CLOCK_CONTROL_REG,
 			0x1f, 0x10);
 	mdelay(10);