Sort inputs to compatibility suite zip files

Sort the inputs to remove duplicates, which fixes:
found two file paths to be copied into dest path: "target/testcases/minikin_perftests/minikin_perftests", both ["target/testcases/minikin_perftests/minikin_perftests"]"out/target/product/bullhead/testcases/minikin_perftests/minikin_perftests" and ["target/testcases/minikin_perftests/minikin_perftests"]"out/target/product/bullhead/testcases/minikin_perftests/minikin_perftests"!

Test: m -j device-tests
Change-Id: I8d7e83cd077c62461c9a08e7f1b49c321fbcb0e3
diff --git a/core/tasks/device-tests.mk b/core/tasks/device-tests.mk
index 084353b..b1b936a 100644
--- a/core/tasks/device-tests.mk
+++ b/core/tasks/device-tests.mk
@@ -17,7 +17,7 @@
 
 device-tests-zip := $(PRODUCT_OUT)/device-tests.zip
 $(device-tests-zip): $(COMPATIBILITY.device-tests.FILES) $(SOONG_ZIP)
-	echo $(COMPATIBILITY.device-tests.FILES) > $@.list
+	echo $(sort $(COMPATIBILITY.device-tests.FILES)) > $@.list
 	sed -i -e 's/\s\+/\n/g' $@.list
 	grep $(HOST_OUT_TESTCASES) $@.list > $@-host.list || true
 	grep $(TARGET_OUT_TESTCASES) $@.list > $@-target.list || true
diff --git a/core/tasks/general-tests.mk b/core/tasks/general-tests.mk
index 9629bfa..763dd51 100644
--- a/core/tasks/general-tests.mk
+++ b/core/tasks/general-tests.mk
@@ -16,7 +16,7 @@
 
 general-tests-zip := $(PRODUCT_OUT)/general-tests.zip
 $(general-tests-zip): $(COMPATIBILITY.general-tests.FILES) $(SOONG_ZIP)
-	echo $(COMPATIBILITY.general-tests.FILES) > $@.list
+	echo $(sort $(COMPATIBILITY.general-tests.FILES)) > $@.list
 	sed -i -e 's/\s\+/\n/g' $@.list
 	grep $(HOST_OUT_TESTCASES) $@.list > $@-host.list || true
 	grep $(TARGET_OUT_TESTCASES) $@.list > $@-target.list || true