Merge branch '2022-04-19-assorted-updates'

- Migrate CONFIG_SYS_MEM_TOP_HIDE to Kconfig, IOMUX bugfix, 2 BTRFS
bugfixes, update .gitignore and .mailmap files, aspeed GPIO bugfix,
image-fit and squashfs code cleanups, enable EXT4 and ISO partitions on
DeveloperBox.
- populate u-boot,bootconf under /chosen, see
  https://github.com/devicetree-org/dt-schema/pull/71 for corresponding
  change

diff --cc scripts/config_whitelist.txt
index 4c03ed9,4c03ed9..0c3c0b3
--- 1/scripts/config_whitelist.txt
--- 2/scripts/config_whitelist.txt
+++ b/scripts/config_whitelist.txt
@@@ -1334,7 -1334,7 +1334,6 @@@ CONFIG_SYS_MEMORY_BAS
  CONFIG_SYS_MEMORY_SIZE
  CONFIG_SYS_MEM_RESERVE_SECURE
  CONFIG_SYS_MEM_SIZE
--CONFIG_SYS_MEM_TOP_HIDE
  CONFIG_SYS_MFD
  CONFIG_SYS_MHZ
  CONFIG_SYS_MIPS_TIMER_FREQ
@@@ -1858,7 -1858,7 +1857,6 @@@ CONFIG_TSECV
  CONFIG_TSECV2_1
  CONFIG_TSEC_TBICR_SETTINGS
  CONFIG_TWL6030_POWER
--CONFIG_TZSW_RESERVED_DRAM_SIZE
  CONFIG_UBIFS_VOLUME
  CONFIG_UBI_PART
  CONFIG_UBI_SIZE