Include reloptions.h directly in the .c files where it's needed

There are no references to anything that's in reloptions.h in the
header files. They need to include genam.h instead, which defines
IndexScanDesc.

src/hnsw.c

@@ -4,6 +4,7 @@
 #include <math.h>
 
 #include "access/amapi.h"
+#include "access/reloptions.h"
 #include "commands/progress.h"
 #include "commands/vacuum.h"
 #include "hnsw.h"

src/hnsw.h

@@ -3,9 +3,9 @@
 
 #include "postgres.h"
 
+#include "access/genam.h"
 #include "access/generic_xlog.h"
 #include "access/parallel.h"
-#include "access/reloptions.h"
 #include "lib/pairingheap.h"
 #include "nodes/execnodes.h"
 #include "port.h"				/* for random() */

src/ivfflat.c

@@ -3,6 +3,7 @@
 #include <float.h>
 
 #include "access/amapi.h"
+#include "access/reloptions.h"
 #include "commands/progress.h"
 #include "commands/vacuum.h"
 #include "ivfflat.h"

src/ivfflat.h

@@ -3,9 +3,9 @@
 
 #include "postgres.h"
 
+#include "access/genam.h"
 #include "access/generic_xlog.h"
 #include "access/parallel.h"
-#include "access/reloptions.h"
 #include "lib/pairingheap.h"
 #include "nodes/execnodes.h"
 #include "port.h"				/* for random() */