powerpc/ps3: Fix hcall lv1_get_version_info

The lv1_get_version_info hcall takes 2, not 1 output
arguments.  Adjust the lv1 hcall table and all calls.

Usage:

  int lv1_get_version_info(u64 *version_number, u64 *vendor_id)

Signed-off-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/include/asm/lv1call.h b/arch/powerpc/include/asm/lv1call.h
index 3ddf66c..84812211 100644
--- a/arch/powerpc/include/asm/lv1call.h
+++ b/arch/powerpc/include/asm/lv1call.h
@@ -276,7 +276,7 @@
 LV1_CALL(destruct_io_irq_outlet,                        1, 0, 121 )
 LV1_CALL(map_htab,                                      1, 1, 122 )
 LV1_CALL(unmap_htab,                                    1, 0, 123 )
-LV1_CALL(get_version_info,                              0, 1, 127 )
+LV1_CALL(get_version_info,                              0, 2, 127 )
 LV1_CALL(insert_htab_entry,                             6, 3, 158 )
 LV1_CALL(read_virtual_uart,                             3, 1, 162 )
 LV1_CALL(write_virtual_uart,                            3, 1, 163 )