uboot_api: fix warnings
uboot_api: add gunzip syscall
Revert "grub: disable MMU before booting GRUB"

This reverts commit 7a66f32c6ade341d52cdc0a1e22f38f75a19b8b3.
Revert "uboot_api: add gunzip syscall"

This reverts commit 010c6bb4968f4cd3149944b5b9b483d734048527.
arch: arm: map grub region for GRUB
Revert "[lib][zlib] allow debugging"

This reverts commit ab1c8afc99b823c86a6e9758a0bce0c832b93b48.
Revert "[lib][zlib] fix signed vs unsigned comparison"

This reverts commit b3fc03010ce4d654b0d1a0f84b9475e636840428.
Revert "[lib][zlib] add zlib compression library"

This reverts commit 8472d31ecc50d1ddb24093805802b73dfbfa9839.
app: aboot: disable zlib