fusee: don't flicker as we turn the display on ...

Defers backlight init until the framebuffer's fully set up.

Implement BIS Key derivation.

Fix XTS implementation, now verified working on HW.

Update README.md

Prevent compiler optimization of SE LL writes

Implement NX Key Derivation.

fusee: add basic print-to-display console / printk

Implement SE XTS driver code for fusee

Clean up Fusee's SE API, removing unneeded functionality

Reserve AMS0 magic for later use, change to eXosphere Boot Config rev 0

Integrate 5.x SMC API changes, add 4.x specific setup, implement target firmware selection

Display PoC

Import hwinit (with small changes) and exosphère drivers

Add build system for fusee

Fix off-by-one mkey revision errors

Remove useless "pack" pragmas

Add spsr_el3 to cpu_context

Fix LP0 TZRAM CMAC calculation

Fix LP0 entry. Exit still fails in warmboot bin.

Fix CpuSuspend not making it to finalize_powerdown()

Fix CAR primitives

Fix flow controller set functions

Fix and/bic inversions in finalize_powerdown

Add 4.x configitem stuff

Fix async expMod output + smcUnwrapAesWrappedTitlekey

Fix AES-GCM code.

Fix smcComputeCmac, generally improve userpage cache usage

Fix AES ECB encryption not encrypting

memcpy(x, NULL, 0) is undefined behavior

Implement BootReason config