Use -j1 flag and --without-pch (build was crashing on arm64 builder)

Change-Id: I66e00125164675d53097e8c1e47150af84fce3fe
diff --git a/ndn-cxx/Makefile b/ndn-cxx/Makefile
index 4322bfc..ccf74d4 100644
--- a/ndn-cxx/Makefile
+++ b/ndn-cxx/Makefile
@@ -11,6 +11,6 @@
 VERSION=0.5.1-60-gb555b00c
 
 # PPA version
-PPA_VERSION=1
+PPA_VERSION=3
 
 include ../packaging.mk