vCPE vBNG: fix v_bng_install.sh, env, & yaml

vCPE vBNG: fix v_bng_install.sh, env, & yaml

Update vBNG environment and heat templates.
Update v_bng installer for ONAP cloud environment, add 'build state'
control to phases of the installer.
Automatically detect ethernet pci devs for vpp.
Remove binary blobs from Vpp-Integrate-FreeRADIUS-Client-for-vBNG.patch
(cause of the HUGE line count in this patch)
Modify Vpp patch to include dhcp.api.h file which fixes build errors.

Change-Id: If9e61185f2dde9095efda08aa8f72c2c03c475e7
Issue-ID: INT-63
Signed-off-by: Matt Welch <matt.welch@intel.com>