v4

• gnu-efi is updated to 3.0.15
• Release tooling is updated to generate source archive with vendored-in dependencies

slbounce:

• Add synchronization barrier to HCR_EL2 write to fix intermittent
  hangs on x1e

dtbhack:

• Correctly support device detection
• Allow loading dtb overlays
• Assign rmtfs memory on sc7180 to allow booting modem in el2
• Various updates to dt overlays

v3

slbounce:

• Set HCR_EL2_E2H when restoring el1 cpu state in el2
• Flush data cache for the running OS loader

v2

Changes in v2:

sltest:

• sltest.efi will now draw a green line and loop forever to make it more clear the device can successfully run in EL2 without an early crash.

v1

Initial release