IB/uverbs: Move enum ib_raw_packet_caps to uapi

This enum is used by ibv_query_device_ex(3) so it should be defined
in include/uapi/rdma/ib_user_verbs.h.

Link: https://lore.kernel.org/r/20220331032419.313904-1-yangx.jy@fujitsu.com


Signed-off-by: Xiao Yang <yangx.jy@fujitsu.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>