stop overriding user config on update

Move memory training code into it's own stage (fusee-mtc)

fusee: cleanup and optimize boot sequence

Merge branch 'master' into emunand_dev

stratosphere: custom exception handlers (reboot to fusee)

Merge branch 'master' into emunand_dev

atmosphere: current year is 2019

emunand: Move all emulation code to fusee-secondary and simplify logic

emunand: Fix bugs and add missing stuff

emunand: Preliminary skeleton for emunand in fusee

sept-s: First functional version.

fusee-primary: reboot to self, instead of to RCM

fusee: fix error printing pre-SD card init (closes #289).

fusee: move BCT.ini/secondary into atmosphere/

fusee: Improve integration with the new logging system ...

fusee: Implement log level configuration from BCT.ini

port log.c log.h for fusee-primary ...

refactor printing
remove lib/printk as it is replaced with log
remove lib/driver_utils.h
added log levels as they seem right, might need adjustments

Add and fix copyright notices for better GPL compliance (thanks @naehrwert and @CTCaer).

fusee: Complete re-write of the hardware initialization code: ...

- Updated code to match hekate's;
- Improved nxboot (now boots firmwares 2.x successfully);
- Temporarily disabled built-in boot system module support;
- Fixed multiple bugs.

Fusee: Deployed new SDMMC driver in fusee-secondary. All stages boot now. ...

Fusee: Fixed wrong argument in se.c function.
Fusee: Improved timers.

fusee: SDMMC driver re-design: ...

- Based on hekate's, linux's and u-boot's source code;
- Full support for SD and MMC;
- Fixes multiple issues;
- Deployed first in fusee-primary.

fusee: Code cleanup and style fixes.

Pass screen status and mmc struct from stage1 to 2

Stage1: fix potential alignment issue

Fix stack overflow when chainloading stage2

[stage1] Add exception handlers... which somehow don't work?

Introduce fatal_error

Add custom panic driver

Rename sd_utils to fs_utils, etc

Refactor stage1's and stage2's main.c files

Make di.c accept arbitrary FB addresses, fix flickering issues

[stage1] Fix DEFAULT_BCT0_FOR_DEBUG