hog: Set vendor, product and version for all instances

hog: Set vendor, product and version for all instances

Set the the correct vendor and product ids for all UHID/HoG
devices when they are unknown at HoG creation time.

Before this change, when connecting a BT device with multiple HoG
services for the first time, only the first HoG instance's vendor,
product and version fields would be set by the DIS callback. This meant
that all HoG instances except the first would be left with unset values
and their UHID devices would then be created with '0000:0000' as their
vendor:product ids.

Signed-off-by: Anuj Jain <anuj01.jain@samsung.com>
Signed-off-by: Ayush Garg <ayush.garg@samsung.com>