rust sysroot libs are available to all APEXes

The libraries can be transitively included in an APEX when a rust binary
or a library is included there. Adding apex_available property to make
these libraries be available to all APEXes and to the platform as was
before.

Bug: 172414324
Test: m
Change-Id: I792a7dc195cb2d7b2d8c0a2ec255257c8ad1bca3
1 file changed
tree: ff9b4efbeef419a7c37b8a1be43874e47bd1fc81
  1. bootstrap/
  2. darwin-x86/
  3. linux-x86/
  4. Android.bp
  5. OWNERS