CMakeLists.txt: bump LT_REVISION for v3.13.1

Bug: 443333642
Change-Id: If2d59fcbed83a09d074d8c8b2bbbc7e74a58af35
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 87e685d..d0cea91 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -59,7 +59,7 @@
 #
 # The VERSION number in project() should be updated when these variables are.
 set(LT_CURRENT 16)
-set(LT_REVISION 0)
+set(LT_REVISION 1)
 set(LT_AGE 13)
 math(EXPR SO_VERSION "${LT_CURRENT} - ${LT_AGE}")
 set(SO_FILE_VERSION "${SO_VERSION}.${LT_AGE}.${LT_REVISION}")