Revert "build: Increase memory for gradle execution"

This reverts commit b17369b.

Signed-off-by: BJ Hargrave <bj@bjhargrave.com>

gradle.properties

@@ -1,5 +1,5 @@
 # JVM args to run gradle
-org.gradle.jvmargs=-Xms2048m -Xmx4096m
+org.gradle.jvmargs=-Xms1024m -Xmx2048m
 
 # cnf project name
 bnd_cnf=cnf