x86: Move acpi_s3.h to a common location

At present this hedaer is only available on x86. To allow sandbox to use
it for testing, move it to a common location.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/drivers/pci/pci_rom.c b/drivers/pci/pci_rom.c
index 2cede12..1d4064e 100644
--- a/drivers/pci/pci_rom.c
+++ b/drivers/pci/pci_rom.c
@@ -35,7 +35,7 @@
 #include <linux/screen_info.h>
 
 #ifdef CONFIG_X86
-#include <asm/acpi_s3.h>
+#include <acpi_s3.h>
 DECLARE_GLOBAL_DATA_PTR;
 #endif