NAS does not correctly update target CPS interface object when port state changed by kernel

[hpersh]

# kernel: Interface is currently down
root@OPX:~# ifconfig e101-001-0
e101-001-0: flags=6146<BROADCAST,SLAVE,MULTICAST> mtu 1500
ether 90:b1:1c:f4:b3:e2 txqueuelen 1000 (Ethernet)
RX packets 3513 bytes 283031 (276.3 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 327 bytes 24970 (24.3 KiB)
TX errors 0 dropped 1 overruns 0 carrier 0 collisions 0

# CPS: Observed interface object shows as down
root@OPX:~# cps_get_oid.py -qua observed dell-base-if-cmn/if/interfaces-state/interface if/interfaces-state/interface/if-index=11

============dell-base-if-cmn/if/interfaces-state/interface==========

dell-if/if/interfaces-state/interface/supported-autoneg = 4
dell-if/if/interfaces/interface/phys-address = 90:b1:1c:f4:b3:e2
if/interfaces-state/interface/speed = 0
if/interfaces-state/interface/admin-status = 2
dell-if/if/interfaces-state/interface/duplex = 1
dell-if/if/interfaces-state/interface/auto-negotiation = 0
if/interfaces-state/interface/if-index = 11
dell-if/if/interfaces-state/interface/configured-fec = 2
base-if-linux/if/interfaces/interface/dell-type = 1
if/interfaces-state/interface/name = e101-001-0
dell-if/if/interfaces/interface/mtu = 1532
if/interfaces/interface/enabled = 0
dell-if/if/interfaces-state/interface/supported-speed = 3,4,6
dell-if/if/interfaces-state/interface/max-speed = 6
if/interfaces-state/interface/oper-status = 2
if/interfaces-state/interface/type = ianaift:ethernetCsmacd

# CPS: Target interface object shows as up
root@OPX:~# cps_get_oid.py -qua target dell-base-if-cmn/if/interfaces/interface dell-base-if-cmn/if/interfaces/interface/if-index=11

============dell-base-if-cmn/if/interfaces/interface==========

base-if-phy/if/interfaces/interface/npu-id = 0
dell-base-if-cmn/if/interfaces/interface/if-index = 11
dell-if/if/interfaces/interface/phys-address = 90:b1:1c:f4:b3:e2
dell-if/if/interfaces/interface/speed = 6
if/interfaces/interface/name = e101-001-0
dell-if/if/interfaces/interface/duplex = 1
dell-if/if/interfaces/interface/auto-negotiation = 0
if/interfaces/interface/type = ianaift:ethernetCsmacd
base-if-linux/if/interfaces/interface/dell-type = 1
if/interfaces/interface/enabled = 1
dell-if/if/interfaces/interface/mtu = 1532
dell-if/if/interfaces/interface/mode = 1
base-if-phy/if/interfaces/interface/port-id = 25
dell-base-if-cmn/if/interfaces/interface/vlan-filter = 2
base-if-phy/if/interfaces/interface/phy-media = 3
dell-if/if/interfaces/interface/fec = 2