Bug 1218370 - Use Gradle daemon in srcdir builds. r=me

DONTBUILD NPOTB

--HG--
rename : mobile/android/gradle/gradle.properties => gradle.properties
extra : commitid : 8L4GIKHfAHF

gradle.properties

@@ -0,0 +1,2 @@
+org.gradle.parallel=true
+org.gradle.daemon=true