Update references to libc-trusty and libstdc++-trusty

Update makefiles to reference libc-trusty and libc++-trusty
modules relative to the top of the tree.

Bug: 111521896
Change-Id: I4de43edd92ed16481c9f9c1d0262607709112b7b
diff --git a/rules.mk b/rules.mk
index 46f3df8..831c05a 100644
--- a/rules.mk
+++ b/rules.mk
@@ -14,7 +14,6 @@
 	$(LOCAL_DIR)/../../hardware/libhardware/include
 
 MODULE_DEPS := \
-	lib/libc \
-	lib/libc-trusty \
+	trusty/user/base/lib/libc-trusty \
 
 include make/module.mk