ARM: omap1: htc_herald: fix typos in comments

Various spelling mistakes in comments.
Detected with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Reviewed-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Author: JuliaLawall

arch/arm/mach-omap1/board-htcherald.c

@@ -170,7 +170,7 @@ static const unsigned int htc_herald_keymap[] = {
 	KEY(3, 0, KEY_VOLUMEUP), /* Volume up */
 	KEY(4, 0, KEY_F2),  /* Right bar (landscape) */
 	KEY(5, 0, KEY_MAIL), /* Win key (portrait) */
-	KEY(6, 0, KEY_DIRECTORY), /* Right bar (protrait) */
+	KEY(6, 0, KEY_DIRECTORY), /* Right bar (portrait) */
 	KEY(0, 1, KEY_LEFTCTRL), /* Windows key */
 	KEY(1, 1, KEY_COMMA),
 	KEY(2, 1, KEY_M),