ARM: imx: remove custom .init_time hook

With arch/arm calling of_clk_init(NULL) from time_init(), we can now
remove custom .init_time hooks.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>

diff --cc arch/arm/mach-imx/clk-imx51-imx53.c
Simple merge

diff --cc arch/arm/mach-imx/common.h
Simple merge

diff --cc arch/arm/mach-imx/imx51-dt.c
Simple merge

diff --cc arch/arm/mach-imx/mach-imx53.c
Simple merge

diff --cc arch/arm/mach-imx/mach-imx6q.c
Simple merge

diff --cc arch/arm/mach-imx/mach-imx6sl.c
Simple merge

diff --cc arch/arm/mach-imx/mach-vf610.c
Simple merge