ARM: mxs: change the lookup name for fec phy clock

Change the fec phy clock lookup name to be more accurate.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

arch/arm/mach-mxs/clock-mx28.c

@@ -624,7 +624,7 @@ static struct clk_lookup lookups[] = {
 	_REGISTER_CLOCK("mxs-auart.3", NULL, uart_clk)
 	_REGISTER_CLOCK("mxs-auart.4", NULL, uart_clk)
 	_REGISTER_CLOCK("rtc", NULL, rtc_clk)
-	_REGISTER_CLOCK("pll2", NULL, pll2_clk)
+	_REGISTER_CLOCK("enet_out", NULL, pll2_clk)
 	_REGISTER_CLOCK("mxs-dma-apbh", NULL, hbus_clk)
 	_REGISTER_CLOCK("mxs-dma-apbx", NULL, xbus_clk)
 	_REGISTER_CLOCK("mxs-mmc.0", NULL, ssp0_clk)

arch/arm/mach-mxs/mach-mx28evk.c

@@ -226,7 +226,7 @@ static void __init mx28evk_fec_reset(void)
 	struct clk *clk;
 
 	/* Enable fec phy clock */
-	clk = clk_get_sys("pll2", NULL);
+	clk = clk_get_sys("enet_out", NULL);
 	if (!IS_ERR(clk))
 		clk_prepare_enable(clk);