x86: Fix some comments in x86 KVM process initialization.
x86: Fix some comments in x86 KVM process initialization.

These comments did not reflect what the code was actually doing.

Change-Id: I2bcd23bd68c870e364bdfd0b9b0eb5dcb560e713
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/38537
Reviewed-by: Jason Lowe-Power <92de577f37050ad05b60626d2f17913f40dcb1a2@gmail.com>
Maintainer: Jason Lowe-Power <92de577f37050ad05b60626d2f17913f40dcb1a2@gmail.com>
Tested-by: kokoro <2ac7b1f3fa578934c95181d4272be0d3bca00121@google.com>

gem5/gem5,gem5/gem5,gem5/gem5,gem5/gem5,gem5/gem5,gem5/gem5,gem5/gem5