HID: fix overrun in quirks initialization

Check whether index is within bounds before testing the element.

declared in drivers/hid/usbhid/hid-core.c:62:
static char *quirks_param[MAX_USBHID_BOOT_QUIRKS] = ...

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>