RS driver refactor and bugfix for 64-bit

Bug: 20135751
Bug: 19602994

1) Refactor runtime functions due to the new pass in
   bcc has solved X86-64 calling convention issues
2) Fix bugs to support 64bit RS compat mode
3) Remove the obsolete runtime stubs

Depends on CL https://android-review.googlesource.com/#/c/142185/

Change-Id: I33b6fc1c61348eda83fdfdd437bfc67409ebe10c
Signed-off-by: Yong Chen <yong.a.chen@intel.com>
1 file changed