Add missing definitions for amplifiers

bindings/hamlib.swg

@@ -228,6 +228,9 @@
 %include <hamlib/rotlist.h>
 %include <hamlib/rotator.h>
 
+%include <hamlib/amplist.h>
+%include <hamlib/amplifier.h>
+
 %inline {
 typedef const char * const_char_string;
 }