openssl: Move microblaze to linux-latomic config

openssl: Move microblaze to linux-latomic config

When building with the previous a number of atomic functions come back as
undefined.  Switching to linux-latomic fixes this.

(From OE-Core rev: 88d5bf78ffb1d120df48139b1ed3c2e3fa8310d0)

Signed-off-by: Mark Hatle <mark.hatle@kernel.crashing.org>
Signed-off-by: Mark Hatle <mark.hatle@amd.com>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Steve Sakoman <steve@sakoman.com>