docs: octeontx2: Add Documentation for QOS
Hariprasad Kelam authored

Add QOS example configuration along with tc-htb commands
Signed-off-by: default avatarHariprasad Kelam <hkelam@marvell.com>
Reviewed-by: default avatarSimon Horman <simon.horman@corigine.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
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