version: update to 20190703

This is for QEMU 4.1.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
diff --git a/VERSION b/VERSION
index 6708ea6..905e21d 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-20190114
+20190703