bitbake: ConfHandlerr: Use full path in variable history

When an evaluation was made for a configuration file the path to the
file was saved as a relative one. The change in this commit will save the
location as an absolute path. This way the user will have full information
regarding the location of the file where a variable was changed and the
line withing the file.

[YOCTO #5562]

(Bitbake rev: df9e22901555b06fef308f7136547f2c47ccec35)

Signed-off-by: Marius Avram <marius.avram@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/parse/parse_py/ConfHandler.py

@@ -144,7 +144,7 @@ def handle(fn, data, include):
         # skip comments
         if s[0] == '#':
             continue
-        feeder(lineno, s, fn, statements)
+        feeder(lineno, s, abs_fn, statements)
 
     # DONE WITH PARSING... time to evaluate
     data.setVar('FILE', abs_fn)