bitbake.conf: Work around dev symlink problems on darwin

bitbake.conf: Work around dev symlink problems on darwin

On darwin, we have:

libxxx.dylib -> libxxx.Y.dylib

compared to Linux which has:

libxxx.so -> libxxx.so.Y

Our ordering of PACKAGES with -dev first and then ${PN} makes it impossible to
match the files correctly using simple globbing. This makes darwin targets
completely broken since both the libs and the dev symlinks end up in ${PN}-dev.

Whilst this commit is a hack, it at least puts the files into ${PN} and allows the
builds to be used. Symlinks don't take up much space so this isn't the end of
the world. I'm open to better solutions to this.

(From OE-Core rev: 51c3dbe2df45096bbd7866adabb08e114952ff13)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>