- Remove 1082.patch which has an alternative merged upstream
- Update to version 1.21.1+git20240329.764e34f:
* [http] Add error table entry for HTTP 404 Not Found error
* [tftp] Add error table entry for TFTP "file not found" error code
* [efi] Add error table entry for local filesystem EFI_NOT_FOUND error
* [efi] Report local file errors during download, rather than on opening
* [image] Allow opaque URI component to provide image name
* [build] Fix build failures with random versions of gcc
* [efi] Extract basic network settings from loaded image device path
* [efi] Add efi_path_mac() to parse a MAC address from an EFI device path
* [efi] Add support for driving EFI_MANAGED_NETWORK_PROTOCOL devices
* [efi] Allow for drivers to be located via child handles
* [efi] Add helper functions for service binding protocols
* [efi] Match chainloaded device by uppermost matching handle
* [efi] Set current working URI from our own device path URI, if present
* [efi] Add efi_path_uri() to parse a URI from an EFI device path
* [settings] Expose current working URI and directory URI via settings
* [efi] Pad transmit buffer length to work around vendor driver bugs
* [golan] Use ETH_HLEN for inline header size
* [build] Fix building on older versions of gcc
* [snp] Allocate additional padding for receive buffers
* [ucode] Add support for updating x86 microcode
* [bios] Provide a multiprocessor API for BIOS
* [librm] Add support for installing a startup IPI handler
* [efi] Provide a multiprocessor API for EFI
* [mp] Define an API for multiprocessor functions
* [efi] Update to current EDK2 headers
* [ci] Update action versions to silence GitHub warnings
* [efi] Do not report return status from efi_block_local()
* [block] Allow SAN boot device to be identified by filesystem label