meson: Do not support drivers known to fail in Big Endian archs

When building in big endian architectures some device tests will fail,
as per this we're pretty sure that most of the drivers are not ready
to work in big-endian architectures.
Since we're aware of this, better to just stop supporting those drivers
instead of having each distribution to handle the problem.

So, add a list of supported drivers that is filled depending the
architecture type we're building on. Keep continue building those
drivers since we want to at least test-build them, but do not expose
them as libfprint drivers, so if a device in the system uses any of them
will be ignored.

At the same time, we keep track of the problem, so that we can fix the
drivers.

Related to #236

tests/meson.build

@@ -70,7 +70,8 @@ if get_option('introspection')
         driver_envs = envs
         driver_envs.set('FP_DRIVERS_WHITELIST', driver_test)
 
-        if driver_test in drivers and gusb_dep.version().version_compare('>= 0.3.0')
+        if (driver_test in supported_drivers and
+            gusb_dep.version().version_compare('>= 0.3.0'))
             test(driver_test,
                 find_program('umockdev-test.py'),
                 args: join_paths(meson.current_source_dir(), driver_test),