releng: build against Oxygen.1a

+ qualifier fix
diff --git a/releng/build-scripts/build/otdt_prerequisites-hipp.sh b/releng/build-scripts/build/otdt_prerequisites-hipp.sh
index 76b97b6..bcb23bd 100644
--- a/releng/build-scripts/build/otdt_prerequisites-hipp.sh
+++ b/releng/build-scripts/build/otdt_prerequisites-hipp.sh
@@ -52,7 +52,7 @@
 
 # VERSIONS:
 # Eclipse SDK build identifier (used for substitution in otdt.map.in etc.):
-SDK_QUALIFIER=${SDK_QUALIFIER:="I20171009-0410"}
+SDK_QUALIFIER=${SDK_QUALIFIER:="M20171009-0410"}
 
 # Architecture (as used by OSGi):
 ARCH=`arch`