ci/freedreno: Move freedreno's deqp testing to suite support.

Using suites makes load-balancing our jobs much easier, keeps the CPU busy handling the a630_gles_others.sh test sets (and improves the output and baseline handling for them), and makes it trivial to add in more short test sets.

a306: still 5 jobs, and we add KHR-GLES2 (KHR-GLES3 is unstable)
a530: still 5 jobs, added KHR-GLES*
a630_gl: 5 jobs becomes 4, and we add KHR-GLES*
a630_vk: still 3 jobs, now 1/3 of all VK instead of 1/4.
a630_vk_full: still 2 jobs, now includes full bypass testing, partial
              no-force testing, and testing of pre-merge-skipped tests.