[Network] Bump to azure-mgmt-network 8.0.0#12021

Merged

mmyyrroonn merged 4 commits intoAzure:devfrom

mmyyrroonn:fix-11988-pe-pls

Feb 6, 2020

Commits on Feb 3, 2020

code change to fix pls and pe
MyronFanQiu
committed
test 8.0.0
Myron
committed

Commits on Feb 6, 2020

remove history
Myron
committed
record the tst
Myron
committed