Simple sd card driver (#162)

* fixed inline functions for modern C standart

* more stack for application

* added library

* init fatfs library

* fatfs example application

* Merge with current master

* fix typo and delete old files

* cmsis os 2 reentrance fix

* Reworked dependency wait to support multiple dependency

* Build FatFS on local target, syscall.c is target-specific.

* run local target ok

* testcase for fatfs

Co-authored-by: aanper <mail@s3f.ru>

firmware/targets/local/target.mk

@@ -11,5 +11,9 @@ CFLAGS += -I$(TARGET_DIR)/Inc
 CFLAGS += -Wall -fdata-sections -ffunction-sections -pthread
 LDFLAGS += -pthread
 
+# FatFs library
+CFLAGS += -I$(TARGET_DIR)/fatfs
+C_SOURCES += $(TARGET_DIR)/fatfs/syscall.c
+
 run: all
 	$(OBJ_DIR)/$(PROJECT).elf