Tables: Fix an issue that ACPI initialization is blocked due to no FACS.

This patch fixes an issue that when FACS tables do not exist, ACPI
initialization cannot proceed. ACPICA BZ 1122. Lv Zheng.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>

source/components/tables/tbutils.c

@@ -160,20 +160,18 @@ AcpiTbInitializeFacs (
                 ACPI_CAST_INDIRECT_PTR (ACPI_TABLE_HEADER, &AcpiGbl_Facs32));
     (void) AcpiGetTableByIndex (ACPI_TABLE_INDEX_X_FACS,
                 ACPI_CAST_INDIRECT_PTR (ACPI_TABLE_HEADER, &AcpiGbl_Facs64));
-    if (!AcpiGbl_Facs32 && !AcpiGbl_Facs64)
-    {
-        return (AE_NO_MEMORY);
-    }
 
-    if (AcpiGbl_Use32BitFacsAddresses)
+    if (AcpiGbl_Facs64 && (!AcpiGbl_Facs32 || !AcpiGbl_Use32BitFacsAddresses))
     {
-        AcpiGbl_FACS = AcpiGbl_Facs32 ? AcpiGbl_Facs32 : AcpiGbl_Facs64;
+        AcpiGbl_FACS = AcpiGbl_Facs64;
     }
-    else
+    else if (AcpiGbl_Facs32)
     {
-        AcpiGbl_FACS = AcpiGbl_Facs64 ? AcpiGbl_Facs64 : AcpiGbl_Facs32;
+        AcpiGbl_FACS = AcpiGbl_Facs32;
     }
 
+    /* If there is no FACS, just continue. There was already an error msg */
+
     return (AE_OK);
 }
 #endif /* !ACPI_REDUCED_HARDWARE */