[ACPI] S3 resume: avoid kmalloc() might_sleep oops symptom

ACPI now uses kmalloc(...,GPF_ATOMIC) during suspend/resume.

http://bugzilla.kernel.org/show_bug.cgi?id=3469



Signed-off-by: David Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>