BoardConfig: Use SYSTEM_*_SEPOLICY_DIRS

The old variable name is being deprecated on API level 31+.

See https://android-review.googlesource.com/q/topic:"board-system-ext-sepolicy"

Signed-off-by: Felix <google@ix5.org>
Change-Id: I9b65f43060d503ab2d05ced8742b3dcce699c8f5
diff --git a/marlin/BoardConfig.mk b/marlin/BoardConfig.mk
index b4278cf..c9a7196 100644
--- a/marlin/BoardConfig.mk
+++ b/marlin/BoardConfig.mk
@@ -102,8 +102,8 @@
 ifneq ($(filter marlin marlinf, $(TARGET_PRODUCT)),)
 BOARD_VENDOR_SEPOLICY_DIRS += device/google/marlin/sepolicy/verizon
 endif
-BOARD_PLAT_PUBLIC_SEPOLICY_DIR := device/google/marlin/sepolicy/public
-BOARD_PLAT_PRIVATE_SEPOLICY_DIR := device/google/marlin/sepolicy/private
+SYSTEM_EXT_PUBLIC_SEPOLICY_DIRS := device/google/marlin/sepolicy/public
+SYSTEM_EXT_PRIVATE_SEPOLICY_DIRS := device/google/marlin/sepolicy/private
 
 TARGET_FS_CONFIG_GEN := device/google/marlin/config.fs
 
diff --git a/sailfish/BoardConfig.mk b/sailfish/BoardConfig.mk
index 5b9632b..4d8d190 100644
--- a/sailfish/BoardConfig.mk
+++ b/sailfish/BoardConfig.mk
@@ -101,8 +101,8 @@
 ifneq ($(filter sailfish sailfishf, $(TARGET_PRODUCT)),)
 BOARD_VENDOR_SEPOLICY_DIRS += device/google/marlin/sepolicy/verizon
 endif
-BOARD_PLAT_PUBLIC_SEPOLICY_DIR := device/google/marlin/sepolicy/public
-BOARD_PLAT_PRIVATE_SEPOLICY_DIR := device/google/marlin/sepolicy/private
+SYSTEM_EXT_PUBLIC_SEPOLICY_DIRS := device/google/marlin/sepolicy/public
+SYSTEM_EXT_PRIVATE_SEPOLICY_DIRS := device/google/marlin/sepolicy/private
 
 TARGET_FS_CONFIG_GEN := device/google/marlin/config.fs