Add include files for prototypes

Include the header with prototypes in the file that provides definitions
as well, to catch any mismatch between prototype and definition.

Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Closes #10470

module/zfs/edonr_zfs.c

@@ -27,8 +27,8 @@
  */
 #include <sys/zfs_context.h>
 #include <sys/zio.h>
+#include <sys/zio_checksum.h>
 #include <sys/edonr.h>
-#include <sys/zfs_context.h>	/* For CTASSERT() */
 #include <sys/abd.h>
 
 #define	EDONR_MODE		512