[Relay] Prepare for merging context_analysis.cc and device_annotation.cc#9077

Merged

masahi merged 2 commits intoapache:mainfrom mbs-octoml:mbs-prepare-device-planning

Sep 24, 2021

+709-99

Commits on Sep 22, 2021

[Relay] Prepare for merging context_analysis.cc and device_annotation.cc
mbs-octoml
committed

Commits on Sep 23, 2021

[checkpoint] Address Christopher's comments.
mbs-octoml
committed