Theoritically you should be able to create your own efi boot partition.I wanted to add that I boot Linux Mint 20.1 on my N36 from the on board eMMC.
If there is a FAT32 partition anywhere on the drive that has a /efi directory and
then a /efi/boot directory inside of that with the efi boot files, the bios will find it and
create a boot option called [ubuntu]. That starts grub booting into MInt I'm sure.
It seems that the first two partitions on the N36's eMMC are read only and one of them
must contain the windows boot loader. I found that you can't erase them and they
take away about 4MB from the space available to you for Linux Mint. This also means
there is always a windows boot option in the bios.
It's interesting that when I installed Linux Mint the same way on my new N33 I was
able to use the entire 64GB of the onboard eMMC. I was able to delete the windows
boot partition and it's boot option is gone from the bios.
I thought this might make it clear on how to EFI boot linux on the eMMC.