test: tee: test TEE uclass

Tests the TEE uclass with a sandbox tee driver.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
[trini: initialize session to 0 in dm_test_tee]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/test/dm/Makefile b/test/dm/Makefile
index 264f126..57c7dfb 100644
--- a/test/dm/Makefile
+++ b/test/dm/Makefile
@@ -51,4 +51,5 @@
 obj-$(CONFIG_MISC) += misc.o
 obj-$(CONFIG_DM_SERIAL) += serial.o
 obj-$(CONFIG_CPU) += cpu.o
+obj-$(CONFIG_TEE) += tee.o
 endif