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.

fusee/fusee-primary/Makefile

@@ -18,7 +18,7 @@ include $(DEVKITARM)/base_rules
 #---------------------------------------------------------------------------------
 TARGET		:=	$(notdir $(CURDIR))
 BUILD		:=	build
-SOURCES		:=	src src/lib src/lib/fatfs src/display src/hwinit
+SOURCES		:=	src src/sdmmc src/hwinit src/lib src/lib/fatfs src/display
 DATA		:=	data
 INCLUDES	:=	include