ARM: imx5: tzic_init_irq() can directly be .init_irq hook

After i.MX51 supports DT only, tzic_init_irq() can figure out the
tzic_base on its own.  Thus, it can directly be .init_irq hook, and
mx51[53]_init_irq() can be saved.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>

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

diff --cc arch/arm/mach-imx/mach-imx50.c
Simple merge

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

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

diff --cc arch/arm/mach-imx/mm-imx5.c
Simple merge

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