fusee: add special log level for sd card debug

fusee/sept: build fixes

fusee: fix mariko master key derivation

fusee: cleanup code and start fleshing out mariko keygen

fusee: start fleshing out nxboot for Mariko

fusee: accurately match Mariko pk1ldr

fusee: 11.0.0 support

fusee/sept: delegate SoC selection to individual components and keep common code SoC-agnostic

fusee: artificially raise main length to avoid elf compilation issues (final size will be much smaller)

fusee: move dsi register write to the proper configuration list

fusee: update display code for mariko

fusee: fixup extents for chainloader/stack

fusee-primary: fix reboot-to-self for decompressed code

fusee/sept: fix fuse driver to not infinitely recurse on get_soc_type()

fusee: fixup common for primary

fusee: uncompress fusee-primary, which is now getting pretty big.

fusee: implement mariko sdram params saving

fusee: mariko sdram initialization

fusee: initial mariko hwinit

fusee: support mariko in sdmmc

fusee/sept: support mariko fuses

fusee/sept: update fuse driver code

fusee: fix sdmmc speed modes

fusee: update FatFs to R0.14

fusee/sept: isolate common code for mariko preparation (to be revised during C++ rewrite)

sm: fix wait list reentrancy and state on processing loop entry

sm: implement accurate request deferral semantics

Add lz4 dependency to the build instructions (#1308) ...

* Add lz4 dependency to the build instructions

At build-time of exosphere, the `split_program.py` script is called.
It requires python module `lz4` -> https://github.com/Atmosphere-NX/Atmosphere/blob/master/exosphere/program/split_program.py

Adding lz4 to the building.md documentation.

* Remove "(Python Library)" from deps-entries

git subrepo push libraries ...

subrepo:
  subdir:   "libraries"
  merged:   "b05ba02f"
upstream:
  origin:   "https://github.com/Atmosphere-NX/Atmosphere-libs"
  branch:   "master"
  commit:   "b05ba02f"
git-subrepo:
  version:  "0.4.1"
  origin:   "???"
  commit:   "???"

fusee: fix sept enc header dependency