dmclock: pick up fix to replace uint

`uint` is not available in musl. so this change should address the FTBFS
on distros, like Alpine and Gentoo Linux, which uses musl-libc.

Signed-off-by: Kefu Chai <kchai@redhat.com>

diff --git a/src/dmclock b/src/dmclock
index acfde8e45c0715e35046b581c72772a66d2133a1..a86236a1960066c418c1a5bee0d5a41d25dd30c3 160000 (submodule)
--- a/src/dmclock
+++ b/src/dmclock
@@ -1 +1 @@
-Subproject commit acfde8e45c0715e35046b581c72772a66d2133a1
+Subproject commit a86236a1960066c418c1a5bee0d5a41d25dd30c3