cfe: clean up empty lines in .c and .h files

sys/dev/cfe/cfe_api.h

@@ -71,7 +71,6 @@
 #define	cfe_strlen(x)	strlen(x)
 /* End customization. */
 
-
 /*  *********************************************************************
     *  Constants
     ********************************************************************* */
@@ -124,7 +123,6 @@ typedef struct {
     int64_t fwi_bootarea_size;	        /* size of boot area */
 } cfe_fwinfo_t;
 
-
 /*
  * cfe_strlen is handled specially: If already defined, it has been
  * overridden in this environment with a standard strlen-like function.

sys/dev/cfe/cfe_error.h

@@ -48,7 +48,6 @@
     *  
     ********************************************************************* */
 
-
 #define CFE_OK			 0
 #define CFE_ERR                 -1	/* generic error */
 #define CFE_ERR_INV_COMMAND	-2

sys/dev/cfe/cfe_ioctl.h

@@ -46,7 +46,6 @@
     *  
     ********************************************************************* */
 
-
 /*  *********************************************************************
     *  NVFAM and FLASH stuff
     ********************************************************************* */