app: rpmbtests: Add test app to read from rpmb partition

This test app will call ucs_do_scsi_rpmb_read to read data from
given sector address from the rpmb partition.

Change-Id: Ib66a18cfd5a7ea0368bc7123c68fe5c9ff219156
diff --git a/project/msm8994.mk b/project/msm8994.mk
index 743e7eb..26b097e 100644
--- a/project/msm8994.mk
+++ b/project/msm8994.mk
@@ -5,6 +5,7 @@
 TARGET := msm8994
 
 MODULES += app/aboot
+MODULES += app/rpmbtests
 
 ifeq ($(TARGET_BUILD_VARIANT),user)
 DEBUG := 0