angler: add first_api_level property

Bug: 33343908
Change-Id: I4f758396d552f417568c3b8fb289862175af7446
(cherry picked from commit b69fff0a750a18a8abf98dc3e2946abaa27911dd)
diff --git a/device.mk b/device.mk
index 41ffa67..c9388f0 100644
--- a/device.mk
+++ b/device.mk
@@ -456,6 +456,10 @@
 ADDITIONAL_DEFAULT_PROPERTIES += \
     ro.oem_unlock_supported=1
 
+# ro.product.first_api_level indicates the first api level the device has commercially launched on.
+PRODUCT_PROPERTY_OVERRIDES += \
+    ro.product.first_api_level=23
+
 # In userdebug, add minidebug info the the boot image and the system server to support
 # diagnosing native crashes.
 ifneq (,$(filter userdebug, $(TARGET_BUILD_VARIANT)))