HID: bump maximum global item tag report size to 96 bytes

This allows the latest N-Trig devices to function properly.

BugLink: https://bugs.launchpad.net/bugs/724831

Cc: stable@vger.kernel.org
Signed-off-by: Chase Douglas <chase.douglas@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>