ARM i.MX25: Fix PWM per clock lookups

They are behind the gate pwm_ipg_per, not directly behind per10.
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

arch/arm/mach-imx/clk-imx25.c

@@ -203,13 +203,13 @@ int __init mx25_clocks_init(void)
 	clk_register_clkdev(clk[cspi2_ipg], NULL, "imx35-cspi.1");
 	clk_register_clkdev(clk[cspi3_ipg], NULL, "imx35-cspi.2");
 	clk_register_clkdev(clk[pwm1_ipg], "ipg", "mxc_pwm.0");
-	clk_register_clkdev(clk[per10], "per", "mxc_pwm.0");
+	clk_register_clkdev(clk[pwm_ipg_per], "per", "mxc_pwm.0");
 	clk_register_clkdev(clk[pwm1_ipg], "ipg", "mxc_pwm.1");
-	clk_register_clkdev(clk[per10], "per", "mxc_pwm.1");
+	clk_register_clkdev(clk[pwm_ipg_per], "per", "mxc_pwm.1");
 	clk_register_clkdev(clk[pwm1_ipg], "ipg", "mxc_pwm.2");
-	clk_register_clkdev(clk[per10], "per", "mxc_pwm.2");
+	clk_register_clkdev(clk[pwm_ipg_per], "per", "mxc_pwm.2");
 	clk_register_clkdev(clk[pwm1_ipg], "ipg", "mxc_pwm.3");
-	clk_register_clkdev(clk[per10], "per", "mxc_pwm.3");
+	clk_register_clkdev(clk[pwm_ipg_per], "per", "mxc_pwm.3");
 	clk_register_clkdev(clk[kpp_ipg], NULL, "imx-keypad");
 	clk_register_clkdev(clk[tsc_ipg], NULL, "mx25-adc");
 	clk_register_clkdev(clk[i2c_ipg_per], NULL, "imx-i2c.0");