cpukit: Group the last ungrouped files

Seventy-three files had a Doxygen block but no @ingroup line.  Doxygen
documented them, but no group page listed them.  The PCI headers, the
driver manager headers and 46 headers under include/rtems were affected.

Give each file the group of the component it belongs to.  The seven
default file system files follow the table they fill.  A file which
provides an entry of rtems_filesystem_operations_table joins LibIOFSOps.
A file which provides an entry of rtems_filesystem_file_handlers_r joins
LibIOFSHandler.

Every file in cpukit with a Doxygen block names a group.  The files
malloc.h, todimpl.h and printk_plugin.c name two groups.  The other
files name one.

Updates #5717.

Assisted-by: Claude:claude-opus-5 claude-code
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>

cpukit/include/mqueue.h

@@ -3,6 +3,8 @@
 /**
  * @file
  *
+ * @ingroup RTEMSImplPOSIXMessageQueue
+ *
  * @brief POSIX Message Queues
  * 
  * This file contains the definitions related to POSIX Message Queues.