Increase dex2oat timeout for run-tests

We are constanly seeing dex2oat timeouts, hopefully, the
problem will be solved by increase dex2oat timeout to 5 mins. It is
currently set to 1 mins.

Bug: 65822340
Test: test-art-host
Change-Id: I4daed0f8fc4c08c9a668d43a4c50e158a6ebcd6b
1 file changed