Provisionally increase PLATFORM_MIN_SUPPORTED_TARGET_SDK_VERSION to 23.

Bug: 112828438
Test: m
Change-Id: Id66e19cab1248ce7c89a39e3bd21b7e0dae8c4e7
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index 0ba85f3..e3cf13d 100644
--- a/core/version_defaults.mk
+++ b/core/version_defaults.mk
@@ -320,6 +320,6 @@
   # Used to set minimum supported target sdk version. Apps targeting sdk
   # version lower than the set value will result in a warning being shown
   # when any activity from the app is started.
-  PLATFORM_MIN_SUPPORTED_TARGET_SDK_VERSION := 17
+  PLATFORM_MIN_SUPPORTED_TARGET_SDK_VERSION := 23
 endif
 .KATI_READONLY := PLATFORM_MIN_SUPPORTED_TARGET_SDK_VERSION