tree-wide: fix assorted typos all over the place

That is "success", "unknown", "through", "performance", "[re|un]mapping"
, "access", "default", "reasonable", "[con]currently", "temperature"
, "channel", "[un]used", "application", "example","hierarchy", "therefore"
, "[over|under]flow", "contiguous", "threshold", "enough" and others.

Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

arch/powerpc/kernel/kgdb.c

@@ -52,7 +52,7 @@ static struct hard_trap_info
 	{ 0x2030, 0x08 /* SIGFPE */  },		/* spe fp data */
 	{ 0x2040, 0x08 /* SIGFPE */  },		/* spe fp data */
 	{ 0x2050, 0x08 /* SIGFPE */  },		/* spe fp round */
-	{ 0x2060, 0x0e /* SIGILL */  },		/* performace monitor */
+	{ 0x2060, 0x0e /* SIGILL */  },		/* performance monitor */
 	{ 0x2900, 0x08 /* SIGFPE */  },		/* apu unavailable */
 	{ 0x3100, 0x0e /* SIGALRM */ },		/* fixed interval timer */
 	{ 0x3200, 0x02 /* SIGINT */  }, 	/* watchdog */

arch/powerpc/kernel/tau_6xx.c

@@ -59,7 +59,7 @@ void set_thresholds(unsigned long cpu)
 	mtspr(SPRN_THRM1, THRM1_THRES(tau[cpu].low) | THRM1_V | THRM1_TIE | THRM1_TID);
 
 	/* setup THRM2,
-	 * threshold, valid bit, enable interrupts, interrupt when above threshhold
+	 * threshold, valid bit, enable interrupts, interrupt when above threshold
 	 */
 	mtspr (SPRN_THRM2, THRM1_THRES(tau[cpu].high) | THRM1_V | THRM1_TIE);
 #else