[POWERPC] Spelling fixes: arch/ppc/

Spelling fixes in arch/ppc/.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/ppc/boot/lib/vreset.c b/arch/ppc/boot/lib/vreset.c
index 463ba00..98539e9 100644
--- a/arch/ppc/boot/lib/vreset.c
+++ b/arch/ppc/boot/lib/vreset.c
@@ -518,7 +518,7 @@
 	outb(0x3c6, 0xff);  /* MASK */
 
 	for ( i = 0; i < 0x10; i++)
-		writeAttr(i, AC[i], 0);  /* pallete */
+		writeAttr(i, AC[i], 0);  /* palette */
 	writeAttr(0x10, 0x0c, 0);    /* text mode */
 	writeAttr(0x11, 0x00, 0);    /* overscan color (border) */
 	writeAttr(0x12, 0x0f, 0);    /* plane enable */