bootstage: Record the time taken to set up driver model

Driver model is set up ones before relocation and once after. Record the
time taken in each case.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/common/board_f.c b/common/board_f.c
index 4f94049..a8fc28c 100644
--- a/common/board_f.c
+++ b/common/board_f.c
@@ -732,7 +732,9 @@
 #if defined(CONFIG_DM) && defined(CONFIG_SYS_MALLOC_F_LEN)
 	int ret;
 
+	bootstage_start(BOOTSTATE_ID_ACCUM_DM_F, "dm_f");
 	ret = dm_init_and_scan(true);
+	bootstage_accum(BOOTSTATE_ID_ACCUM_DM_F);
 	if (ret)
 		return ret;
 #endif
diff --git a/common/board_r.c b/common/board_r.c
index bde9877..ef90998 100644
--- a/common/board_r.c
+++ b/common/board_r.c
@@ -313,7 +313,9 @@
 #ifdef CONFIG_TIMER
 	gd->timer = NULL;
 #endif
+	bootstage_start(BOOTSTATE_ID_ACCUM_DM_R, "dm_r");
 	ret = dm_init_and_scan(false);
+	bootstage_accum(BOOTSTATE_ID_ACCUM_DM_R);
 	if (ret)
 		return ret;
 #ifdef CONFIG_TIMER_EARLY
diff --git a/include/bootstage.h b/include/bootstage.h
index 8607e88..9c7b515 100644
--- a/include/bootstage.h
+++ b/include/bootstage.h
@@ -200,6 +200,8 @@
 	BOOTSTAGE_ID_ACCUM_SPI,
 	BOOTSTAGE_ID_ACCUM_DECOMP,
 	BOOTSTAGE_ID_FPGA_INIT,
+	BOOTSTATE_ID_ACCUM_DM_F,
+	BOOTSTATE_ID_ACCUM_DM_R,
 
 	/* a few spare for the user, from here */
 	BOOTSTAGE_ID_USER,