exim-config: Advance to new upstream version.

diff --git a/exim-config b/exim-config
index 1df2595e16dd591d27c4089f19dac493f638d3ca..61295d9c46bb3639fe3140ed645da5313d95e66f 160000 (submodule)
--- a/exim-config
+++ b/exim-config
@@ -1 +1 @@
-Subproject commit 1df2595e16dd591d27c4089f19dac493f638d3ca
+Subproject commit 61295d9c46bb3639fe3140ed645da5313d95e66f