More consistent with the name of other similar object names.
gdb/ChangeLog:
	* target.h (enum target_object) [TARGET_OBJECT_LIBRARIES_AIX]:
	Renames TARGET_OBJECT_AIX_LIBRARIES.
	* rs6000-nat.c: Replace TARGET_OBJECT_AIX_LIBRARIES with
	TARGET_OBJECT_LIBRARIES_AIX throughout.
	* solib-aix.c: Likwise.
 
   switch (object)
     {
-    case TARGET_OBJECT_AIX_LIBRARIES:
+    case TARGET_OBJECT_LIBRARIES_AIX:
       return rs6000_xfer_shared_libraries (ops, object, annex,
                                           readbuf, writebuf,
                                           offset, len);
 }
 
 /* Append to OBJSTACK an XML string description of the shared library
-   corresponding to LDI, following the TARGET_OBJECT_AIX_LIBRARIES
+   corresponding to LDI, following the TARGET_OBJECT_LIBRARIES_AIX
    format.  */
 
 static void
 }
 
 /* Implement the to_xfer_partial target_ops method for
-   TARGET_OBJECT_AIX_LIBRARIES objects.  */
+   TARGET_OBJECT_LIBRARIES_AIX objects.  */
 
 static LONGEST
 rs6000_xfer_shared_libraries
 
     return data->library_list;
 
   library_document = target_read_stralloc (¤t_target,
-                                           TARGET_OBJECT_AIX_LIBRARIES,
+                                           TARGET_OBJECT_LIBRARIES_AIX,
                                            NULL);
   if (library_document == NULL && warning_msg != NULL)
     {
-      warning (_("%s (failed to read TARGET_OBJECT_AIX_LIBRARIES)"),
+      warning (_("%s (failed to read TARGET_OBJECT_LIBRARIES_AIX)"),
               warning_msg);
       return NULL;
     }
 
   if (solib_aix_debug)
     fprintf_unfiltered (gdb_stdlog,
-                       "DEBUG: TARGET_OBJECT_AIX_LIBRARIES = \n%s\n",
+                       "DEBUG: TARGET_OBJECT_LIBRARIES_AIX = \n%s\n",
                        library_document);
 
   data->library_list = solib_aix_parse_libraries (library_document);
 
   /* Currently loaded libraries specific for SVR4 systems, in XML format.  */
   TARGET_OBJECT_LIBRARIES_SVR4,
   /* Currently loaded libraries specific to AIX systems, in XML format.  */
-  TARGET_OBJECT_AIX_LIBRARIES,
+  TARGET_OBJECT_LIBRARIES_AIX,
   /* Get OS specific data.  The ANNEX specifies the type (running
      processes, etc.).  The data being transfered is expected to follow
      the DTD specified in features/osdata.dtd.  */