archiver: fix gcc-source handling
The source archiver was not handling the gcc-source target correctly, since it uses the
work-shared directory, we don't want to unpack and patch it twice, just as the comments
say, but the code was not there to check for the gcc-source target.
[YOCTO #10265]
(From OE-Core rev:
bbac0699ceadb7a25a60643fb23dffce8b4d23d0)
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
