Introduce range.h

Extract range functions from pci.h. These will be used by later patches
by non-PCI devices. Adjust current users.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
(cherry picked from commit bf1b007123)

hw/msi.c

@@ -19,6 +19,7 @@
  */
 
 #include "msi.h"
+#include "range.h"
 
 /* Eventually those constants should go to Linux pci_regs.h */
 #define PCI_MSI_PENDING_32      0x10

hw/pci_bridge.c

@@ -31,6 +31,7 @@
 
 #include "pci_bridge.h"
 #include "pci_internals.h"
+#include "range.h"
 
 /* PCI bridge subsystem vendor ID helper functions */
 #define PCI_SSVID_SIZEOF        8

hw/pcie.c

@@ -25,6 +25,7 @@
 #include "msi.h"
 #include "pci_internals.h"
 #include "pcie_regs.h"
+#include "range.h"
 
 //#define DEBUG_PCIE
 #ifdef DEBUG_PCIE