Merge remote-tracking branch 'remotes/amarkovic/tags/mips-queue-aug-29-2019' into staging

MIPS queue for August 29th, 2019

# gpg: Signature made Thu 29 Aug 2019 11:19:28 BST
# gpg:                using RSA key D4972A8967F75A65
# gpg: Good signature from "Aleksandar Markovic <amarkovic@wavecomp.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 8526 FBF1 5DA3 811F 4A01  DD75 D497 2A89 67F7 5A65

* remotes/amarkovic/tags/mips-queue-aug-29-2019: (31 commits)
  target/mips: Fix emulation of ST.W in system mode
  target/mips: Clean up handling of CP0 register 31
  target/mips: Clean up handling of CP0 register 30
  target/mips: Clean up handling of CP0 register 29
  target/mips: Clean up handling of CP0 register 28
  target/mips: Clean up handling of CP0 register 27
  target/mips: Clean up handling of CP0 register 26
  target/mips: Clean up handling of CP0 register 25
  target/mips: Clean up handling of CP0 register 24
  target/mips: Clean up handling of CP0 register 23
  target/mips: Clean up handling of CP0 register 20
  target/mips: Clean up handling of CP0 register 19
  target/mips: Clean up handling of CP0 register 18
  target/mips: Clean up handling of CP0 register 17
  target/mips: Clean up handling of CP0 register 16
  target/mips: Clean up handling of CP0 register 15
  target/mips: Clean up handling of CP0 register 14
  target/mips: Clean up handling of CP0 register 13
  target/mips: Clean up handling of CP0 register 12
  target/mips: Clean up handling of CP0 register 11
  ...

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