add tusbh_msc_status

reanme PRINTF_TARGET_DEBUG_CONSOLE to PRINTF_TARGET_SEMIHOST
add read10 implementation
able to read fat root sector

vendor/fatfs/diskio.h

@@ -18,6 +18,8 @@ extern "C" {
 /* Status of Disk Functions */
 typedef BYTE	DSTATUS;
 
+extern volatile DSTATUS disk_state;
+
 /* Results of Disk Functions */
 typedef enum {
 	RES_OK = 0,		/* 0: Successful */