powerpc/pseries: Declare the acquire/release drc index routines

Add declarations for dlpar_{acquire,release}_drc(...)

They are already marked non-static but were missing a prototype/

[BenH: Added extern to be consistent with the rest of the file]
Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

arch/powerpc/platforms/pseries/pseries.h

@@ -60,6 +60,8 @@ extern struct device_node *dlpar_configure_connector(__be32,
 						struct device_node *);
 extern int dlpar_attach_node(struct device_node *);
 extern int dlpar_detach_node(struct device_node *);
+extern int dlpar_acquire_drc(u32 drc_index);
+extern int dlpar_release_drc(u32 drc_index);
 
 /* PCI root bridge prepare function override for pseries */
 struct pci_host_bridge;