There was no field in the Horizon interface dialogs to specify the
max-tx-rate. This commit adds the max_tx_rate field to the Add,
Modify and Details dialogs.
Test plan
PASS Add interface with max_tx_rate set to 100
PASS Add interface with max_tx_rate set to 0
PASS Add interface with max_tx_rate set to empty
PASS Modify interface with max_tx_rate previously set to 100, changing it to 200
PASS Modify interface with max_tx_rate previously set to 100, changing it to 0
PASS Modify interface with max_tx_rate previously set to 100, changing it to empty
PASS Modify interface with max_tx_rate previously set to 0, changing it to 100
PASS Modify interface with max_tx_rate previously set to 0, changing it to empty
PASS View details of interface with max_tx_rate set to 0
PASS View details of interface with max_tx_rate set to 100
PASS View details of interface with max_tx_rate set to empty
Closes-Bug: #2000635
Signed-off-by: Lucas Ratusznei Fonseca <lucas.ratuszneifonseca@windriver.com>
Change-Id: I16ce1dbd2dbf12367ed6a4428216ad37b4c31f14