[VOL-5116] bbsim to report max and current speeds of its uniports

[VOL-5127] - verify_bbsim_sanity-test failure

Change-Id: I3174846e55657db6173428ed749367de8d124c7b
diff --git a/VERSION b/VERSION
index afe5df6..04cc999 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.15.5
\ No newline at end of file
+1.15.6