version: update to 20190719

This is for QEMU 4.2.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
diff --git a/VERSION b/VERSION
index 905e21d..0d6cbf1 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-20190703
+20190719