[MIPS] EV64120: Fix timer initialization for HZ != 100.

Signed-off-by: Ralf Baechle <[e-mail]>

arch/mips/gt64120/common/time.c

···
 	/* Disable timer first */
 	GT_WRITE(GT_TC_CONTROL_OFS, 0);
 	/* Load timer value for 100 Hz */
-	GT_WRITE(GT_TC3_OFS, Sys_clock / 100);
+	GT_WRITE(GT_TC3_OFS, Sys_clock / HZ);
 
 	/*
 	 * Create the IRQ structure entry for the timer.  Since we're too early