"Update Platform Security String to 2018-07-05 for oc-mr1-dev
Bug:79883349"
(cherry picked from commit d83c28410550e48b162c2b7414db9a4627aee013)

Change-Id: Ibc4b74eee8e8d368f2750c72821285faabbd77f7
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index efe6876..e23b9af 100644
--- a/core/version_defaults.mk
+++ b/core/version_defaults.mk
@@ -181,7 +181,7 @@
     #  It must be of the form "YYYY-MM-DD" on production devices.
     #  It must match one of the Android Security Patch Level strings of the Public Security Bulletins.
     #  If there is no $PLATFORM_SECURITY_PATCH set, keep it empty.
-      PLATFORM_SECURITY_PATCH := 2018-06-05
+      PLATFORM_SECURITY_PATCH := 2018-07-05
 endif
 
 ifndef PLATFORM_BASE_OS