Fix debugging Symbian gcce raptor built apps.

Fix debugging Symbian gcce raptor built apps.

Local executable is put into a different folder
(always 'armv5' despite it being a 'gcce' build, changed in qmake),
and the symbol file is named 'foo.exe.sym' instead of 'foo.sym'.

Done-by: Friedemann Kleint
Reviewed-by: Pawel Polanski