Makefile: Replace functions by single RUN_TEST var

Use a single RUN_TEST parametric variable to call the run_test.sh
script, similiarly to what is done for COMPILE.c in GNU Make. Rules
using that variable are then expected to specialize the various
parameters it contains (RUN_TEST_SH, RUN_TEST_ARGS, RUN_TEST_QEMU_ARGS,
...). This makes the code easier to extend to new test targets and more
straightforward to read through fewer indirections and intermediate
variables.

Bug: 195395681
Test: make test
Change-Id: I5cbddacc00ae9f2fa1f0004124c25d900ad6999c
1 file changed
tree: 8dc31838768c5a0e760a39bc8a95cd1f76e8843d
  1. aarch64/
  2. crosvm/
  3. cuttlefish/
  4. kvm-unit-tests/
  5. common.inc
  6. Makefile