libvirt_private.syms: Properly expose virPCI* function from virpci.h

There are couple of functions that are meant to be exposed but
are missing syms file adjustment.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

src/libvirt_private.syms

@@ -2614,6 +2614,7 @@ virObjectUnref;
 # util/virpci.h
 virPCIDeviceAddressAsString;
 virPCIDeviceAddressEqual;
+virPCIDeviceAddressFree;
 virPCIDeviceAddressGetIOMMUGroupAddresses;
 virPCIDeviceAddressGetIOMMUGroupNum;
 virPCIDeviceAddressGetSysfsFile;
@@ -2625,6 +2626,7 @@ virPCIDeviceCopy;
 virPCIDeviceDetach;
 virPCIDeviceFileIterate;
 virPCIDeviceFree;
+virPCIDeviceGetAddress;
 virPCIDeviceGetConfigPath;
 virPCIDeviceGetDriverPathAndName;
 virPCIDeviceGetIOMMUGroupDev;
@@ -2664,11 +2666,14 @@ virPCIDeviceSetUsedBy;
 virPCIDeviceUnbind;
 virPCIDeviceWaitForCleanup;
 virPCIEDeviceInfoFree;
+virPCIELinkSpeedTypeFromString;
+virPCIELinkSpeedTypeToString;
 virPCIGetDeviceAddressFromSysfsLink;
 virPCIGetHeaderType;
 virPCIGetMdevTypes;
 virPCIGetNetName;
 virPCIGetPhysicalFunction;
+virPCIGetSysfsFile;
 virPCIGetVirtualFunctionIndex;
 virPCIGetVirtualFunctionInfo;
 virPCIGetVirtualFunctions;