Update layoutlib-api-prebuilt to v15.

Contains API to enable layoutlib to not depend on kxml.

Origin

tools/base: @ e2c5a5a584bba5473696c7eb4f259af239a796c8

Change-Id: I8781731d2fcff39899d02ceb0a6d1ae5f55f0e52
(cherry picked from commit 8d4495e80ad3b61c472fa93c7fd945ffa2511707)
diff --git a/common/layoutlib_api/PREBUILT b/common/layoutlib_api/PREBUILT
index 4edf48c..f577cd6 100644
--- a/common/layoutlib_api/PREBUILT
+++ b/common/layoutlib_api/PREBUILT
@@ -1,4 +1,4 @@
 The object in this prebuilt directory can be rebuilt from
 	platform/tools/base/layoutlib_api/
 
-From: https://android.googlesource.com/platform/tools/base/+/8c32f7ef24436d394438f4cee86d889efa931654
+From: https://android.googlesource.com/platform/tools/base/+/e2c5a5a584bba5473696c7eb4f259af239a796c8
diff --git a/common/layoutlib_api/layoutlib_api-prebuilt.jar b/common/layoutlib_api/layoutlib_api-prebuilt.jar
index c7c6635..e866563 100644
--- a/common/layoutlib_api/layoutlib_api-prebuilt.jar
+++ b/common/layoutlib_api/layoutlib_api-prebuilt.jar
Binary files differ
diff --git a/common/layoutlib_api/layoutlib_api-sources.jar b/common/layoutlib_api/layoutlib_api-sources.jar
index 5d526ca..3480dc4 100644
--- a/common/layoutlib_api/layoutlib_api-sources.jar
+++ b/common/layoutlib_api/layoutlib_api-sources.jar
Binary files differ