powerpc/setup: cleanup ifdef mess in check_cache_coherency()

Use IS_ENABLED() instead of #ifdefs

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Christophe Leroy 2019-03-22 08:08:43 +00:00 • committed by Michael Ellerman
commit b5064efee2