drm/radeon: Add init interrupt kfd->kgd interface

This patch adds a new interface function to the kfd->kgd interface.
The function is kgd_init_interrupts() and its function is to
initialize a pipe's interrupts.

The function currently enables the timestamp interrupt and the
bad opcode interrupt.

Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
diff --git a/drivers/gpu/drm/radeon/cikd.h b/drivers/gpu/drm/radeon/cikd.h
index 0089d83..b33ba3b 100644
--- a/drivers/gpu/drm/radeon/cikd.h
+++ b/drivers/gpu/drm/radeon/cikd.h
@@ -1335,6 +1335,7 @@
 #       define CNTX_EMPTY_INT_ENABLE                    (1 << 20)
 #       define PRIV_INSTR_INT_ENABLE                    (1 << 22)
 #       define PRIV_REG_INT_ENABLE                      (1 << 23)
+#       define OPCODE_ERROR_INT_ENABLE                  (1 << 24)
 #       define TIME_STAMP_INT_ENABLE                    (1 << 26)
 #       define CP_RINGID2_INT_ENABLE                    (1 << 29)
 #       define CP_RINGID1_INT_ENABLE                    (1 << 30)