Include pre-generated copy of api-versions DO NOT MERGE

This CL changes the api-versions.xml file released in platform tools
to correspond to what was checked into prebuilts rather than what
is being generated by the build. The version generated by the AOSP
build is incorrect for release, but we are now moving to releasing
platform tools from AOSP. In addition, this file will be removed
from platform tools after a few releases (it will be available from
the platform component instead).

Test: make win_sdk sdk_repo and check the included api-versions.xml
Change-Id: I0c3dd3c99ec0c852e7cf8d86b83e298e157044d2

Author: vsiva

build/sdk.atree

@@ -51,7 +51,7 @@ bin/hprof-conv                          strip platform-tools/hprof-conv
 
 
 # API database for tools such as lint
-development/sdk/generated-api-versions.xml    platform-tools/api/api-versions.xml
+prebuilts/sdk/sdk-annotations/api-versions.xml    platform-tools/api/api-versions.xml
 
 # API annotations database for lint
 prebuilts/sdk/sdk-annotations/annotations.zip   platform-tools/api/annotations.zip