roomservice.py: use roomservice for PecanCM

Change-Id: I18587a1b39a4607e7dca68375dec134d14ecc722
build: remove some things that eat space

Change-Id: I1a2bfac0602cab3a7731a7698da6449e01880aff
mkvendor.sh: update commit name

Change-Id: I684824b6105d18fa9b7ee2d044fb7aad0cc60abb