Version bump to OPM2.171019.026

Change-Id: I42dd601170a93a371ab111ed001ffeadb4eed12b
diff --git a/core/build_id.mk b/core/build_id.mk
index 6a51058..3d8d3bf 100644
--- a/core/build_id.mk
+++ b/core/build_id.mk
@@ -18,4 +18,4 @@
 # (like "CRB01").  It must be a single word, and is
 # capitalized by convention.
 
-export BUILD_ID=OPM2.171019.025
+export BUILD_ID=OPM2.171019.026