[SCSI] add PCI_VENDOR_ID macro for Brocade in pci_ids.h

Adds PCI_VENDOR_ID_BROCADE macro in include/linux/pci_ids.h file. This macro
is used in MPT Fusion FC drivers to support Brocade branded FC controllers
signed-off-by: Sathya Prakash <sathya.prakash@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

include/linux/pci_ids.h

@@ -2017,6 +2017,8 @@
 
 #define PCI_VENDOR_ID_ARIMA		0x161f
 
+#define PCI_VENDOR_ID_BROCADE		0x1657
+
 #define PCI_VENDOR_ID_SIBYTE		0x166d
 #define PCI_DEVICE_ID_BCM1250_PCI	0x0001
 #define PCI_DEVICE_ID_BCM1250_HT	0x0002