sim: Collapse gem5Main into main.

gem5Main is short and simple and only calls into python's m5.main()
function. It's also only called from one place and only makes sense to
call from one place, so lets just put it there inline and keep
everything together.

Change-Id: I17e303e3a29d5473f0f31cd51d7fb367f6c81f9e
Reviewed-by: Gabe Black <>
Maintainer: Gabe Black <>
Tested-by: kokoro <>
3 files changed