Merge remote-tracking branch 'remotes/philmd/tags/sdmmc-20210803' into staging

Merge remote-tracking branch 'remotes/philmd/tags/sdmmc-20210803' into staging

SD/MMC patches queue

- sdcard: Fix assertion accessing out-of-range addresses
  with SEND_WRITE_PROT (CMD30)

# gpg: Signature made Tue 03 Aug 2021 18:38:03 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/tags/sdmmc-20210803:
  hw/sd/sdcard: Fix assertion accessing out-of-range addresses with CMD30
  hw/sd/sdcard: Document out-of-range addresses for SEND_WRITE_PROT

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