libcamera: Drop path prefix from Doxygen file directive

The Doxygen directive only requires qualifying header file names with a
path to differentiate between multiple header files with the same name.
Most file directives that refer to unambiguous files do not have a
libcamera/ and/or internal/ path prefix, but a few do, most likely due
to copy&paste. Drop the prefix in those few files for consistency.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

src/libcamera/fence.cpp

@@ -11,7 +11,7 @@ namespace libcamera {
 
 /**
  *
- * \file libcamera/fence.h
+ * \file fence.h
  * \brief Definition of the Fence class
  */