reference newer PXMC submodule release at public PiKRON site.

Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>

diff --git a/submodule/pxmc b/submodule/pxmc
index 002bf91c0907845b45bb7d5a8221edd57ce722da..95ccfd5c5e9eea62e1f5aec8046f491b40ba1fe9 160000 (submodule)
--- a/submodule/pxmc
+++ b/submodule/pxmc
@@ -1 +1 @@
-Subproject commit 002bf91c0907845b45bb7d5a8221edd57ce722da
+Subproject commit 95ccfd5c5e9eea62e1f5aec8046f491b40ba1fe9