ARM i.MX5 uart clock bug fix
ARM i.MX5 uart clock bug fix

uart clk is from pll3 on mx53 instead of mx51

Signed-off-by: Yong Shen <5799e75fd3cf6a6b9830f22bb55252c000de23ab@freescale.com>
Signed-off-by: Sascha Hauer <c00cbc2b736c26791a3822db86f8796fe9efff67@pengutronix.de>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs