s390/boot: detect and enable memory facilities

Detect and enable memory facilities which is a
prerequisite for pgtables setup in the decompressor.

Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2 files changed