i2c: imx: disable clock when it's possible to save power.
i2c: imx: disable clock when it's possible to save power.

Enable clock before START, disable it after STOP.

Signed-off-by: Richard Zhao <02c7f46de5d286f83f8b52e1a5b197858440c714@gmail.com>
Signed-off-by: Ben Dooks <1177f64998f284a7348354b8e91cbbe575d9858a@fluff.org>

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