awesome: update awesompd submodule

diff --git a/awesome/widgets/awesompd b/awesome/widgets/awesompd
index 8a6072a452dc516ab5d896c84319089c21a678ca..3157a1c765ce4ae9130ee472d162bcf4026965d1 160000 (submodule)
--- a/awesome/widgets/awesompd
+++ b/awesome/widgets/awesompd
@@ -1 +1 @@
-Subproject commit 8a6072a452dc516ab5d896c84319089c21a678ca
+Subproject commit 3157a1c765ce4ae9130ee472d162bcf4026965d1