Separate sdk membership support out of cc/library.go

Bug: 142918168
Test: m checkbuild
Change-Id: I4a7f2af8e0b41feca2b5a431b42ad03bbfe94b0c
diff --git a/Android.bp b/Android.bp
index f72d624..dd213bb 100644
--- a/Android.bp
+++ b/Android.bp
@@ -186,6 +186,7 @@
         "cc/binary.go",
         "cc/fuzz.go",
         "cc/library.go",
+        "cc/library_sdk_member.go",
         "cc/object.go",
         "cc/test.go",
         "cc/toolchain_library.go",