Add -std=c++11 flag to trusty build am: 77d09b78af
am: 3818f734c8

Change-Id: I93ac1ebeb30020da8c2a60612e007b974ca221d2
diff --git a/rules.mk b/rules.mk
index af6dfa2..8a45aff 100644
--- a/rules.mk
+++ b/rules.mk
@@ -8,6 +8,8 @@
 
 GLOBAL_INCLUDES += $(LOCAL_DIR)/include/
 
+MODULE_CPPFLAGS := -std=c++11
+
 MODULE_DEPS := \
 	lib/libc \
 	lib/libc-trusty \