RDMA/amso1100: Fix build with debugging off

Since pr_debug() has changed from a macro to an inline function when
DEBUG is not defined, its arguments now need to be defined even when
debugging is off.  Therefore to_event_str() and to_qp_state_str() need
to be moved out of #ifdef DEBUG.  The compiler will throw the
definitions away if DEBUG is not defined, but it needs to be able to
see that the functions exist.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
diff --git a/drivers/infiniband/hw/amso1100/c2_ae.c b/drivers/infiniband/hw/amso1100/c2_ae.c
index 3aae497..a31439b 100644
--- a/drivers/infiniband/hw/amso1100/c2_ae.c
+++ b/drivers/infiniband/hw/amso1100/c2_ae.c
@@ -66,7 +66,6 @@
 	}
 }
 
-#ifdef DEBUG
 static const char* to_event_str(int event)
 {
 	static const char* event_str[] = {
@@ -144,7 +143,6 @@
 		return "<invalid QP state>";
 	};
 }
-#endif
 
 void c2_ae_event(struct c2_dev *c2dev, u32 mq_index)
 {