S3: Use old heap during normal boot

During normal boot, the cbmem is uninitialized. So it is illegal to find
the heap in cbmem.

Change-Id: I8b5e1dbf1124819ed91693a86a6dbe41aea109e5
Signed-off-by: Zheng Bao <zheng.bao@amd.com>
Signed-off-by: zbao <fishbaozi@gmail.com>
Reviewed-on: http://review.coreboot.org/904
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marcj303@gmail.com>
2 files changed