sepolicy: Move proc_watermark_scale_factor mapping from ignore list

New label proc_watermark_scale_factor was mistakenly added into ignore
list. Fix this by moving the mapping into correct .cil files.

Fixes: 6988677f22d4 ("Allow init to execute extra_free_kbytes.sh script")
Bug: 241761479
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: If12cad2ed20504d374d77a68eaba1600d2768338
diff --git a/private/compat/30.0/30.0.cil b/private/compat/30.0/30.0.cil
index 9f40876..44044fb 100644
--- a/private/compat/30.0/30.0.cil
+++ b/private/compat/30.0/30.0.cil
@@ -1820,7 +1820,8 @@
 (typeattributeset privapp_data_file_30_0 (privapp_data_file))
 (typeattributeset proc_30_0
   ( proc
-    proc_bootconfig))
+    proc_bootconfig
+    proc_watermark_scale_factor))
 (typeattributeset proc_abi_30_0 (proc_abi))
 (typeattributeset proc_asound_30_0 (proc_asound))
 (typeattributeset proc_bluetooth_writable_30_0 (proc_bluetooth_writable))