arm: Move lastinc to arch_global_data

arch/arm/cpu/arm1136/mx31/timer.c

arch/arm/cpu/arm1136/mx35/timer.c

arch/arm/cpu/arm1136/omap24xx/timer.c

arch/arm/cpu/arm920t/at91/timer.c

arch/arm/cpu/arm920t/s3c24x0/timer.c

arch/arm/cpu/arm926ejs/kirkwood/timer.c

arch/arm/cpu/arm926ejs/mb86r0x/timer.c

arch/arm/cpu/arm926ejs/mx25/timer.c

arch/arm/cpu/arm926ejs/mx27/timer.c

arch/arm/cpu/arm926ejs/mxs/timer.c

arch/arm/cpu/arm926ejs/omap/timer.c

arch/arm/cpu/arm926ejs/orion5x/timer.c

arch/arm/cpu/arm926ejs/spear/timer.c

arch/arm/cpu/arm926ejs/versatile/timer.c

arch/arm/cpu/armv7/omap-common/timer.c

arch/arm/cpu/armv7/s5p-common/timer.c

arch/arm/cpu/armv7/socfpga/timer.c

arch/arm/cpu/armv7/u8500/timer.c

arch/arm/cpu/armv7/zynq/timer.c

arch/arm/cpu/ixp/timer.c