systemd-boot: missing MBR partition table support

I have an arm64 system running Ubuntu Jammy with the MBR partitioned drive having the following partitions:

Device Boot Start End Sectors Size Id Type
/dev/mmcblk0p1 215040 125042654 124827615 59.5G 83 Linux
/dev/mmcblk0p2 206848 215039 8192 4M 83 Linux
/dev/mmcblk0p4 2048 206847 204800 100M ef EFI (FAT-12/16/32)

/dev/mmcblk0p4 is mounted as /boot/efi.

Though the ESP is identifiable via the partition type I get:

# bootctl install
Couldn't find EFI system partition. It is recommended to mount it to /boot or /efi.
Alternatively, use --esp-path= to specify path to mount point.

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: systemd 249.11-0ubuntu3.10
ProcVersionSignature: Ubuntu 5.15.0-83.92-generic 5.15.116
Uname: Linux 5.15.0-83-generic aarch64
ApportVersion: 2.20.11-0ubuntu82.5
Architecture: arm64
CasperMD5CheckResult: unknown
CloudArchitecture: aarch64
CloudID: nocloud
CloudName: unknown
CloudPlatform: nocloud
CloudSubPlatform: seed-dir (/var/lib/cloud/seed/nocloud-net)
Date: Sun Sep 10 08:04:02 2023
Lspci:

Lspci-vt: -[0000:00]-
Lsusb:
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Lsusb-t:
 /: Bus 05.Port 1: Dev 1, Class=root_hub, Driver=ehci-platform/1p, 480M
 /: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=musb-hdrc/1p, 480M
 /: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=ehci-platform/1p, 480M
 /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ohci-platform/1p, 12M
 /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ohci-platform/1p, 12M
MachineType: Unknown Unknown Product
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-83-generic root=UUID=66e1e626-5803-40c5-b0be-b1cce4ef5871 ro earlycon console=ttyS0,115200
SourcePackage: systemd
SystemdFailedUnits:
 Error: command ['systemctl', 'status', '--full', '●'] failed with exit code 4: Invalid unit name "●" escaped as "\xe2\x97\x8f" (maybe you should use systemd-escape?).
 Unit \xe2\x97\x8f.service could not be found.
UpgradeStatus: No upgrade log present (probably fresh install)
acpidump:

dmi.bios.date: 10/01/2023
dmi.bios.release: 23.10
dmi.bios.vendor: U-Boot
dmi.bios.version: 2023.10-rc3-00049-g0fe0395922-dirty
dmi.board.name: Unknown Product
dmi.board.vendor: Unknown
dmi.chassis.type: 3
dmi.chassis.vendor: Unknown
dmi.modalias: dmi:bvnU-Boot:bvr2023.10-rc3-00049-g0fe0395922-dirty:bd10/01/2023:br23.10:svnUnknown:pnUnknownProduct:pvr:rvnUnknown:rnUnknownProduct:rvr:cvnUnknown:ct3:cvr:sku:
dmi.product.name: Unknown Product
dmi.sys.vendor: Unknown