Merge remote-tracking branch 'remotes/amarkovic/tags/mips-gsoc-queue-jun-27-2020...

Merge remote-tracking branch 'remotes/amarkovic/tags/mips-gsoc-queue-jun-27-2020' into staging

MIPS + TCG Continuous Benchmarking queue for June 27th, 2020

# gpg: Signature made Sat 27 Jun 2020 20:30:48 BST
# gpg:                using RSA key D4972A8967F75A65
# gpg: Good signature from "Aleksandar Markovic <amarkovic@wavecomp.com>" [full]
# Primary key fingerprint: 8526 FBF1 5DA3 811F 4A01  DD75 D497 2A89 67F7 5A65

* remotes/amarkovic/tags/mips-gsoc-queue-jun-27-2020:
  MAINTAINERS: Add 'Performance Tools and Tests' subsection
  scripts/performance: Add topN_callgrind.py script
  scripts/performance: Add topN_perf.py script
  MAINTAINERS: Add Loongson-3 maintainer and reviewer
  hw/intc: Add Loongson LIOINTC support
  hw/mips: Implement the kvm_type() hook in MachineClass

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>