Add loader tests to CtsBionicTestCases

Have CtsBionicTestCases run bionic-loader tests

Bug: http://b/22182538
Test: make cts && cts-tradefed run singleCommand cts --skip-preconditions -m CtsBionicTestCases
Change-Id: Id9e2cfc2557d1d201bc8a93fabe4989f506a18c5
3 files changed