Misc fixes for impish builds

Change-Id: I68825a35c250a76c2293430271f6536d212fba3b
diff --git a/nfd/Makefile b/nfd/Makefile
index 67439b6..18b7ea7 100644
--- a/nfd/Makefile
+++ b/nfd/Makefile
@@ -11,6 +11,6 @@
 VERSION=22.02
 
 # PPA version
-PPA_VERSION=1
+PPA_VERSION=2
 
 include ../packaging.mk