regression: add case 8101

Adds regression case 8101 which calls mbedTLS self tests if
available.

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
diff --git a/Android.mk b/Android.mk
index 06ead54..415113e 100644
--- a/Android.mk
+++ b/Android.mk
@@ -43,6 +43,7 @@
 	regression_6000.c \
 	regression_7000.c \
 	regression_8000.c \
+	regression_8100.c \
 	sha_perf.c \
 	xtest_helpers.c \
 	xtest_main.c \