ynl: netdev: drop unnecessary enum-as-flags

JIRA: https://issues.redhat.com/browse/RHEL-31945

commit 0629f22
Author: Jakub Kicinski <kuba@kernel.org>
Date:   Tue Oct 3 08:34:14 2023 -0700

    ynl: netdev: drop unnecessary enum-as-flags
    
    enum-as-flags can be used when enum declares bit positions but
    we want to carry bitmask in an attribute. If the definition
    is already provided as flags there's no need to indicate
    the flag-iness of the attribute.
    
    Acked-by: Stanislav Fomichev <sdf@google.com>
    Link: https://lore.kernel.org/r/20231003153416.2479808-2-kuba@kernel.org
    Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Signed-off-by: Jose Ignacio Tornos Martinez <jtornosm@redhat.com>

Author: jtornosm

Documentation/netlink/specs/netdev.yaml

@@ -74,7 +74,6 @@ attribute-sets:
         doc: Bitmask of enabled xdp-features.
         type: u64
         enum: xdp-act
-        enum-as-flags: true
       -
         name: xdp-zc-max-segs
         doc: max fragment count supported by ZC driver
@@ -87,7 +86,6 @@ attribute-sets:
              See Documentation/networking/xdp-rx-metadata.rst for more details.
         type: u64
         enum: xdp-rx-metadata
-        enum-as-flags: true
 
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