Testsuite: T6494: add new make target "test-interfaces"

We can not run the interface related tests, and non interface related
testcases in parallel to speedup the entire build process.

Makefile

@@ -26,7 +26,12 @@ test: checkiso
 .PHONY: test-no-interfaces
 .ONESHELL:
 test-no-interfaces: checkiso
-	scripts/check-qemu-install --debug --configd --match="$(MATCH)" --smoketest --uefi --no-interfaces build/live-image-amd64.hybrid.iso
+	scripts/check-qemu-install --debug --configd --smoketest --uefi --no-interfaces build/live-image-amd64.hybrid.iso
+
+.PHONY: test-interfaces
+.ONESHELL:
+test-interfaces: checkiso
+	scripts/check-qemu-install --debug --configd --match="interfaces_" --smoketest --uefi build/live-image-amd64.hybrid.iso
 
 .PHONY: testc
 .ONESHELL:

scripts/check-qemu-install

@@ -760,7 +760,7 @@ try:
         if args.match:
             # Remove tests that we don't want to run
             match_str = '-o '.join([f'-name "test_*{name}*.py" ' for name in args.match.split("|")]).strip()
-            c.sendline(f'sudo find /usr/libexec/vyos/tests/smoke/cli/test_* -type f ! \( {match_str} \) -delete')
+            c.sendline(f'sudo find /usr/libexec/vyos/tests/smoke -maxdepth 2 -type f -name test_* ! \( {match_str} \) -delete')
             c.expect(op_mode_prompt)
         if args.no_interfaces:
             # remove interface tests as they consume a lot of time