[SPARC64]: Spelling fixes.

Spelling fixes in arch/sparc64/.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index d7004ea..6e5b01d 100644
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -1008,7 +1008,7 @@
 	if (initrd_start) {
 		size = initrd_end - initrd_start;
 
-		/* Resert the initrd image area. */
+		/* Reserve the initrd image area. */
 #ifdef CONFIG_DEBUG_BOOTMEM
 		prom_printf("reserve_bootmem(initrd): base[%llx] size[%lx]\n",
 			initrd_start, initrd_end);