NXP LPC32xx ARM SoC cleanup for v4.10
This includes a few cleanup changes:
* remove unused header file mach/irqs.h;
* remove unused header file clock.h.
* tag 'lpc32xx-cleanup-v4.10' of https://github.com/sylemieux/linux-lpc32xx:
ARM: lpc32xx: remove unused header file clock.h
ARM: lpc32xx: remove unused header file mach/irqs.h
Signed-off-by: Olof Johansson <olof@lixom.net>