[MIPS] pnx8xxx: move to clocksource
[MIPS] pnx8xxx: move to clocksource

This patch converts PNX8XXX system timer to clocksource restoring PNX8550
support back to live.

Signed-off-by: Vitaly Wool <b9819a7c4871188f9eb85e41467147383d63ebc9@gmail.com>
Signed-off-by: Ralf Baechle <92f48d309cda194c8eda36aa8f9ae28c488fa208@linux-mips.org>

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