Add hibernation image area

This patch set add DDR hibernation image area.
0x40000000 <-> 0x77FFFFFF : kernel
0x78000000 <-> 0x7FFFFFFF : hibernation image area

and Enable swsusp DMA support(sdhi DMA support).

Change-Id: Ia3011d4979f38f0d1cbc5f9f1964e8fa07a7fc20
Signed-off-by: Yuichi Kusakabe <yuichi.kusakabe@jp.fujitsu.com>
Reviewed-on: https://gerrit.automotivelinux.org/gerrit/9697
Tested-by: Jenkins Job builder account <agl-jobbuilder@automotivelinux.org>
ci-image-build: Jenkins Job builder account <agl-jobbuilder@automotivelinux.org>
ci-image-boot-test: Jenkins Job builder account <agl-jobbuilder@automotivelinux.org>
Reviewed-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>