FROMLIST: [net-next,v2,2/2] bpf: Remove the capability check for cgroup skb eBPF

program

Currently loading a cgroup skb eBPF program require a CAP_SYS_ADMIN
capability while attaching the program to a cgroup only requires the
user have CAP_NET_ADMIN privilege. We can escape the capability
check when load the program just like socket filter program to make
the capability requirement consistent.

Change since v1:
Change the code style in order to be compliant with checkpatch.pl
preference

(url: http://patchwork.ozlabs.org/patch/769460/

)
Signed-off-by: Chenbo Feng <fengc@google.com>
Bug: 30950746
Change-Id: Ibe51235127d6f9349b8f563ad31effc061b278ed