PCI/AER: Move AER severity defines to aer.h

The function aer_recover_queue() is a public interface and the
severity argument uses #defines that are in the private header
pci/pcie/aer/aerdrv.h.

This patch moves the #defines from pci/pcie/aer/aerdrv.h to
include/linux/aer.h.

[bhelgaas: split "remove 'extern' from declarations" to another patch]
Signed-off-by: Betty Dall <betty.dall@hp.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

drivers/pci/pcie/aer/aerdrv.h

@@ -13,10 +13,6 @@
 #include <linux/aer.h>
 #include <linux/interrupt.h>
 
-#define AER_NONFATAL			0
-#define AER_FATAL			1
-#define AER_CORRECTABLE			2
-
 #define SYSTEM_ERROR_INTR_ON_MESG_MASK	(PCI_EXP_RTCTL_SECEE|	\
 					PCI_EXP_RTCTL_SENFEE|	\
 					PCI_EXP_RTCTL_SEFEE)

include/linux/aer.h

@@ -7,6 +7,10 @@
 #ifndef _AER_H_
 #define _AER_H_
 
+#define AER_NONFATAL			0
+#define AER_FATAL			1
+#define AER_CORRECTABLE			2
+
 struct aer_header_log_regs {
 	unsigned int dw0;
 	unsigned int dw1;