ACPI: un-export ACPI_ERROR() -- use printk(KERN_ERR...)

Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 52ada53..786851d 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -674,7 +674,7 @@
 
 	/* There must be at least 2 elements */
 	if (!cst || (cst->type != ACPI_TYPE_PACKAGE) || cst->package.count < 2) {
-		ACPI_ERROR((AE_INFO, "not enough elements in _CST"));
+		printk(KERN_ERR PREFIX "not enough elements in _CST\n");
 		status = -EFAULT;
 		goto end;
 	}
@@ -683,7 +683,7 @@
 
 	/* Validate number of power states. */
 	if (count < 1 || count != cst->package.count - 1) {
-		ACPI_ERROR((AE_INFO, "count given by _CST is not valid"));
+		printk(KERN_ERR PREFIX "count given by _CST is not valid\n");
 		status = -EFAULT;
 		goto end;
 	}