property_contexts: Add missing ro.lmk.swap_util_max property context

ro.lmk.swap_util_max property allows vendors to specify max swap
utilization for lmkd to consider.

Bug: 147315292
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I1c126091766eddf6c680f0041077eb1aa422dfd2
diff --git a/private/property_contexts b/private/property_contexts
index f18a23d..99637d4 100644
--- a/private/property_contexts
+++ b/private/property_contexts
@@ -437,6 +437,7 @@
 ro.lmk.psi_partial_stall_ms     u:object_r:exported3_default_prop:s0 exact int
 ro.lmk.psi_complete_stall_ms    u:object_r:exported3_default_prop:s0 exact int
 ro.lmk.swap_free_low_percentage u:object_r:exported3_default_prop:s0 exact int
+ro.lmk.swap_util_max            u:object_r:exported3_default_prop:s0 exact int
 ro.lmk.thrashing_limit          u:object_r:exported3_default_prop:s0 exact int
 ro.lmk.thrashing_limit_decay    u:object_r:exported3_default_prop:s0 exact int
 ro.lmk.use_minfree_levels       u:object_r:exported3_default_prop:s0 exact bool