Kernel timer Hz --> 300
sched.h: Fix load average calculation for HZ=300

(4*HZ+183)      /* 4.61 sec intervals (e.g.: for HZ=300 -> 4*300+183=1383 ticks, 1383/300=4.61 sec) */

Conflicts:
	include/linux/sched.h
Set OMAP_32K_TIMER to 300Hz in order to comply to the CONFIG_HZ changes