Collapse code paths for single- and multi-input kernels.

This patch simplifies the RenderScript JNI layer by replacing six functions
with a single funciton.  This new function now handles all previous cases.
Functions in android.renderscript.script have been updated to use this new JNI
function.

Change-Id: I6cd5448534c38123d51a589339bbeb7e98453e73
3 files changed