vmmInjectedObj: Apic post fails with nameAlias validation
vmmInjectedObj: Apic post fails with nameAlias validation

- Current nameAlias length is defined as 64 in Apic model
- This results in APIC RestAPI (post) fails when vmmInjectedObj's name is > 64
- These change will truncate nameAlias to avoid validation error.

noironetworks/aci-containers,noironetworks/aci-containers