Run test run: Don't use arch guessing heuristics (part 1)

Don't guess the arch from the devices filesystem.
Just check which arch we are building for instead.

As the first step, only assert that those two equal.

Test: ./art/test.py -r --target --optimizing --32 -t 001-HelloWorld
Test: ./art/test.py -r --target --optimizing --64 -t 001-HelloWorld
Change-Id: I2a82cfee472b7ce2c0e1109bddbfd681b85d553c
1 file changed