Added missing RenderScript HIDL API call to VTS test.

ScriptGroupSetInput was never called, so it was added to the
ScriptGroupTest. After this CL gets merged, all RenderScript HIDL API
calls will be tested.

Bug: 35915961

Test: mm on oc-dev, runs and passes on oc-dev
Change-Id: I9153895ac55be757eef59e81837a9518fa9e85ab
1 file changed