[Dynamic Port Breakout]validate breakout mode exactly

[chiourung]

1. If the supported breakout mode is 1x100G[40G], then it can accept 1x100G.
   1x100G[40G] => The port can support speed 100G and 40G
   1x100G => The port just support 100G

2. If the supported breakout mode is 1x100G(4), then it can accept 1x100G.
   1x100G => the number of hw lanes is default
   1x100G(4) => the number of hw lanes should be 4
   If the default numbers of hw lanes is not 4, the 1x100G and 1x100G(4) are different.

Signed-off-by: chiourung_huang chiourung_huang@edge-core.com

- What I did
validate breakout mode exactly

- How I did it

- How to verify it

- Previous command output (if the output of a command-line utility has changed)
If the supported breakout mode is 1x100G[40G], then it can accept 1x100G and save 1x100G to redis-db.

root@as7816-64x:/# config interface breakout Ethernet0 1x100G -f -y

Running Breakout Mode : 4x25G
Target Breakout Mode : 1x100G

Ports to be deleted :
{
"Ethernet2": "25000",
"Ethernet3": "25000",
"Ethernet0": "25000",
"Ethernet1": "25000"
}
Ports to be added :
{
"Ethernet0": "100000"
}

After running Logic to limit the impact

Final list of ports to be deleted :
{
"Ethernet2": "25000",
"Ethernet3": "25000",
"Ethernet0": "25000",
"Ethernet1": "25000"
}
Final list of ports to be added :
{
"Ethernet0": "100000"
}
Loaded below Yang Models
['sonic-acl', 'sonic-extension', 'sonic-interface', 'sonic-loopback-interface', 'sonic-port', 'sonic-portchannel', 'sonic-types', 'sonic-vlan']
Note: Below table(s) have no YANG models:
TACPLUS_SERVER, DEVICE_METADATA, BGP_PEER_RANGE, PORTCHANNEL_MEMBER, FLEX_COUNTER_TABLE, SYSLOG_SERVER, CRM, CONTAINER_FEATURE, BGP_NEIGHBOR, PORTCHANNEL_INTERFACE, MGMT_INTERFACE, NTP_SERVER, DEVICE_NEIGHBOR_METADATA, TELEMETRY, DEVICE_NEIGHBOR, FEATURE, BREAKOUT_CFG, DHCP_SERVER, MGMT_PORT, RESTAPI, VERSIONS, BUFFER_POOL, BUFFER_PROFILE,
Breakout process got successfully completed.
Please note loaded setting will be lost after system reboot. To preserve setting, run config save.
root@as7816-64x:/# redis-cli -n 4 hgetall "BREAKOUT_CFG|Ethernet0"

1. "brkout_mode"
2. "1x100G"

- New command output (if the output of a command-line utility has changed)
root@as7816-64x:/# config interface breakout Ethernet0 1x100G -f -y
[ERROR] Target mode 1x100G is not available for the port Ethernet0
Aborted!

[chiourung]

Fix in #1440