archiver.bbclass: Fix patch error for recipes that inherit dos2unix.

do_unpack_and_patch error happens for these recipes inherit dos2unix.

Signed-off-by: Lei Maohui <leimaohui@fujitsu.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit 2ceda7c9)
Signed-off-by: Steve Sakoman <steve@sakoman.com>