x86: broadwell: Show the memory delay

Samus only takes 7 seconds but it is long enough to think it has hung. Add
a message about what it is doing, similar to the approach on coral.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/arch/x86/dts/chromebook_samus.dts b/arch/x86/dts/chromebook_samus.dts
index 96705ce..ddff277 100644
--- a/arch/x86/dts/chromebook_samus.dts
+++ b/arch/x86/dts/chromebook_samus.dts
@@ -266,6 +266,7 @@
 			board-id-gpios = <&gpio_c 5 0>, <&gpio_c 4 0>,
 					<&gpio_c 3 0>, <&gpio_c 1 0>;
 			bootph-all;
+			fspm,training-delay = <7>;
 			spd {
 				#address-cells = <1>;
 				#size-cells = <0>;