zenfone9: 2023-06-05 vendor security patch

Change-Id: Ic1b3679b2e7f9b8e76474a59948318dbd99f2439
diff --git a/BoardConfig.mk b/BoardConfig.mk
index 9674a47..1e86a78 100755
--- a/BoardConfig.mk
+++ b/BoardConfig.mk
@@ -230,7 +230,7 @@
 BOARD_VENDOR_RAMDISK_KERNEL_MODULES_LOAD := $(strip $(shell cat $(KERNEL_MODULE_DIR)/vendor_boot.modules.load))
 
 # Security patch level
-BOOT_SECURITY_PATCH := 2022-12-01
+BOOT_SECURITY_PATCH := 2023-06-05
 VENDOR_SECURITY_PATCH := $(BOOT_SECURITY_PATCH)
 
 # Sepolicy