Disable FSI debug

FSI interface seems stable at this point, and the debug spew to
console is not particularly useful for future development of the
BMC firmware.

fsi.c

@@ -10,7 +10,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-#define DEBUG
+// #define DEBUG
 
 // General FSI register definitions for IBM CFAM slaves
 #define IBM_CFAM_FSI_SMODE 0x0800