Update Buildroot 2019.02.8

buildroot/support/dependencies/dependencies.sh

@@ -271,6 +271,10 @@ if grep -q ^BR2_PACKAGE_WHOIS=y $BR2_CONFIG ; then
     required_perl_modules="$required_perl_modules autodie"
 fi
 
+if grep -q -E '^BR2_PACKAGE_(WEBKITGTK|WPEWEBKIT)=y' $BR2_CONFIG ; then
+    required_perl_modules="${required_perl_modules} JSON::PP"
+fi
+
 # This variable will keep the modules that are missing in your system.
 missing_perl_modules=""