Fix build on older APIs, take 2

There can be periods in the platform version, so it's not safe to use.
Just run PLATFORM_SDK_VERSION instead.

Bug: 131089111
Test: none
Change-Id: I0a70ed6f0166cf2df77766cc49de806edebe01a4
Merged-In: I72c0af3407f88753cf69b2ba2565b221345d3f3a
Signed-off-by: Roman Kiryanov <rkir@google.com>
2 files changed