Merge remote-tracking branch 'remotes/philmd-gitlab/tags/pflash-next-20200522' into...

Merge remote-tracking branch 'remotes/philmd-gitlab/tags/pflash-next-20200522' into staging

- Remove unused timer in CFI01 flash,
- Clean up code documentation,
- Silent a long-standing Coverity warning (2016-07-15).

# gpg: Signature made Fri 22 May 2020 18:43:03 BST
# gpg:                using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full]
# Primary key fingerprint: FAAB E75E 1291 7221 DCFD  6BB2 E3E3 2C2C DEAD C0DE

* remotes/philmd-gitlab/tags/pflash-next-20200522:
  hw/block/pflash: Check return value of blk_pwrite()
  hw/block/pflash_cfi01: Rename 'reset_flash' label as 'mode_read_array'
  hw/block/pflash_cfi01: Document use of non-CFI compliant command '0x00'
  hw/block/pflash_cfi01: Removed an unused timer

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