[POWERPC] PS3: Add ps3_repository_find_device_by_id()

The storage probe feature of the PS3 hypervisor returns device IDs.  Add
the corresponding repository routine ps3_repository_find_device_by_id()
which can be used to retrieve the device info from the repository.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/platforms/ps3/platform.h b/arch/powerpc/platforms/ps3/platform.h
index aa9dddf..5c6d1b1 100644
--- a/arch/powerpc/platforms/ps3/platform.h
+++ b/arch/powerpc/platforms/ps3/platform.h
@@ -153,6 +153,8 @@
 	return repo;
 }
 int ps3_repository_find_device(struct ps3_repository_device *repo);
+int ps3_repository_find_device_by_id(struct ps3_repository_device *repo,
+				     u64 bus_id, u64 dev_id);
 int ps3_repository_find_devices(enum ps3_bus_type bus_type,
 	int (*callback)(const struct ps3_repository_device *repo));
 int ps3_repository_find_bus(enum ps3_bus_type bus_type, unsigned int from,