Support sub port interface admin status change

[wendani]

- What I did
Implement HLD sonic-net/SONiC#420

- How I did it

- How to verify it
On mlnx dut

alias mode:

$ show  interfaces naming_mode
alias

$ sudo config interface shutdown etp17.10

$ redis-cli -n 4 hgetall "VLAN_SUB_INTERFACE|Ethernet64.10"
1) "admin_status"
2) "down"

$ redis-cli -n 0 hgetall "INTF_TABLE:Ethernet64.10"
1) "admin_status"
2) "down"

$ sudo config interface startup etp17.10

$ redis-cli -n 4 hgetall "VLAN_SUB_INTERFACE|Ethernet64.10"
1) "admin_status"
2) "up"

$ redis-cli -n 0 hgetall "INTF_TABLE:Ethernet64.10"        
1) "admin_status"
2) "up"

default mode:

$ show interfaces naming_mode 
default

$ sudo config interface shutdown Ethernet64.10

$ redis-cli -n 4 hgetall "VLAN_SUB_INTERFACE|Ethernet64.10"
1) "admin_status"
2) "down"

$ redis-cli -n 0 hgetall "INTF_TABLE:Ethernet64.10"
1) "admin_status"
2) "down"

$ sudo config interface startup Ethernet64.10

$ redis-cli -n 4 hgetall "VLAN_SUB_INTERFACE|Ethernet64.10"
1) "admin_status"
2) "up"

$ redis-cli -n 0 hgetall "INTF_TABLE:Ethernet64.10"
1) "admin_status"
2) "up"

- Previous command output (if the output of a command-line utility has changed)

- New command output (if the output of a command-line utility has changed)

-->

[wendani]

retest this please

[wendani]

retest this please

[wendani]

retest this please

[prsunny]

Is this PR a super set of this one?

[wendani]

Yes. #638 (comment)