geneve: fix hint header definition wrt endianness
Bitfields are packed differently depending on the endianness, take it into
account in the GRO hint header definition.
Fixes: e0a12cbf262b ("geneve: add GRO hint output path")
Reported-by: Sashiko <sashiko-bot@kernel.org>
Closes: https://sashiko.dev/#/patchset/20260529144713.780938-1-atenart%40kernel.org
Signed-off-by: Antoine Tenart <atenart@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20260709124801.140632-1-atenart@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>