trusty: fixup boringssl for trusty build

Adjust rules.mk (Trusty specific makefile) to accomodate for
new location of src/crypto/asn1/time_support.c (former
src/crypto/time_support.c)

Change-Id: I25af0c87812edb1611b877a1717e62e317f4a88e
diff --git a/rules.mk b/rules.mk
index adedd59..1a388c4 100644
--- a/rules.mk
+++ b/rules.mk
@@ -51,7 +51,7 @@
 LOCAL_SRC_FILES := $(filter-out src/crypto/bio/socket_helper.c,$(LOCAL_SRC_FILES))
 LOCAL_SRC_FILES := $(filter-out src/crypto/directory_posix.c,$(LOCAL_SRC_FILES))
 LOCAL_SRC_FILES := $(filter-out src/crypto/rand/urandom.c,$(LOCAL_SRC_FILES))
-LOCAL_SRC_FILES := $(filter-out src/crypto/time_support.c,$(LOCAL_SRC_FILES))
+LOCAL_SRC_FILES := $(filter-out src/crypto/asn1/time_support.c,$(LOCAL_SRC_FILES))
 LOCAL_SRC_FILES := $(filter-out src/crypto/x509/by_dir.c,$(LOCAL_SRC_FILES))
 
 # BoringSSL detects Trusty based on this define and does things like switch to