[ALPS04306526] AAL: add AAL vendor partition property

Add vendor property for AAL.

Change-Id: I1c651cb5657cdbeb2b91960f90f9c02508fa2364
CR-Id: ALPS04306526
Feature: Ambient Light Adaptive Luma
(cherry picked from commit 0fbccdc8421acd6544153f2527c492220979cade)
diff --git a/non_plat/property_contexts b/non_plat/property_contexts
index d09a4bc..3da7169 100644
--- a/non_plat/property_contexts
+++ b/non_plat/property_contexts
@@ -256,6 +256,7 @@
 persist.vendor.sys.pq. u:object_r:mtk_pq_prop:s0
 vendor.debug.pq. u:object_r:mtk_pq_prop:s0
 persist.vendor.sys.isp. u:object_r:mtk_pq_prop:s0
+persist.vendor.sys.mtkaal. u:object_r:mtk_pq_prop:s0
 ro.vendor.mtk_pq_color_mode u:object_r:mtk_pq_ro_prop:s0
 ro.vendor.mtk_blulight_def_support u:object_r:mtk_pq_ro_prop:s0
 ro.vendor.mtk_chameleon_support u:object_r:mtk_pq_ro_prop:s0