Currently, we stash libgcc if PN is gcc-cross or gcc-crosssdk. This patch
changes it to work for *gcc-cross and *-gcc-crosssdk which means it
will patch for multilib extended toolchains.
(From OE-Core rev: a39cbed2ec887fb83335ba93e92d971c84a0f4d8)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>