Most host gcc doesn't support -fcanon-prefix-map right now, so
empty DEBUG_PREFIX_MAP_EXTRA to fix the below build error.
| gcc: error: unrecognized command-line option ‘-fcanon-prefix-map’; did you mean ‘-fmacro-prefix-map=’?
Signed-off-by: Mingli Yu <mingli.yu@windriver.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
(cherry picked from commit 31a08525bedd960c21214f84c256f67c6090bb5a)
Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
Signed-off-by: Anuj Mittal <anuj.mittal@oss.qualcomm.com>