HID: picoLCD: Spelling s/REPORT_WRTIE_MEMORY/REPORT_WRITE_MEMORY/

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Bruno Prémont <bonbons@linux-vserver.org>
Cc: linux-input@vger.kernel.org
Signed-off-by: Jiri Kosina <jkosina@suse.cz>