HID: replace offsets values with their corresponding BTN_* defines
HID: replace offsets values with their corresponding BTN_* defines

Instead of using magic values, use their corresponding BTN_* defines
from linux/input.h.

Signed-off-by: Florian Fainelli <38e15eb16946e3ee29d10b339260d9b7fa2fa48b@freebox.fr>
Signed-off-by: Jiri Kosina <ed58f755cc8caaf10c3e8c731a8b86fb8f13d6cb@suse.cz>

KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas