Add libnativehelper_header_only to art-module-sdk

The libnativehelper_header_only module is needed both on host and on
the device, e.g. libjavacrypto needs both. This change:
* Moves all the current members of art-module-sdk to be android only
* Adds host_supported: true
* Adds libnativehelper_header_only to both host and device.

Bug: 150451422
Test: m art-module-sdk
Change-Id: Ie858363589117c8f0c3fa7031580d6badf2c7c22
1 file changed