bpf: bpftool, fix documentation for attach types

bpftool has support for attach types "stream_verdict" and
"stream_parser" but the documentation was referring to them as
"skb_verdict" and "skb_parse". The inconsistency comes from commit
b7d3826c2e ("bpf: bpftool, add support for attaching programs to
maps").

This patch changes the documentation to match the implementation:
- "bpftool prog help"
- man pages
- bash completion

Signed-off-by: Alban Crequy <alban@kinvolk.io>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

tools/bpf/bpftool/Documentation/bpftool-prog.rst

@@ -42,7 +42,7 @@ PROG COMMANDS
 |		**cgroup/connect4** | **cgroup/connect6** | **cgroup/sendmsg4** | **cgroup/sendmsg6**
 |	}
 |       *ATTACH_TYPE* := {
-|		**msg_verdict** | **skb_verdict** | **skb_parse** | **flow_dissector**
+|		**msg_verdict** | **stream_verdict** | **stream_parser** | **flow_dissector**
 |	}
 
 

tools/bpf/bpftool/bash-completion/bpftool

@@ -311,8 +311,8 @@ _bpftool()
                             return 0
                             ;;
                         5)
-                            COMPREPLY=( $( compgen -W 'msg_verdict skb_verdict \
-                                skb_parse flow_dissector' -- "$cur" ) )
+                            COMPREPLY=( $( compgen -W 'msg_verdict stream_verdict \
+                                stream_parser flow_dissector' -- "$cur" ) )
                             return 0
                             ;;
                         6)

tools/bpf/bpftool/prog.c

@@ -1199,7 +1199,7 @@ static int do_help(int argc, char **argv)
 		"                 cgroup/bind4 | cgroup/bind6 | cgroup/post_bind4 |\n"
 		"                 cgroup/post_bind6 | cgroup/connect4 | cgroup/connect6 |\n"
 		"                 cgroup/sendmsg4 | cgroup/sendmsg6 }\n"
-		"       ATTACH_TYPE := { msg_verdict | skb_verdict | skb_parse |\n"
+		"       ATTACH_TYPE := { msg_verdict | stream_verdict | stream_parser |\n"
 		"                        flow_dissector }\n"
 		"       " HELP_SPEC_OPTIONS "\n"
 		"",