[PATCH] tests/functional: fix pylint false positives for cv2 module

From: Marc-André Lureau <[email protected]>

Add generated-members=cv2.* to pylintrc so pylint skips member
checking on the cv2 C extension module, whose members are not
visible to static analysis.

Silence:
2026-08-15 10:42:08,710 - INFO: qemu-test.test_pylint Checking files in /home/elmarco/src/qemu.qom-qapi/tests/functional/arm with pylint
2026-08-15 10:42:10,941 - ERROR: qemu-test.test_pylint "/home/elmarco/src/qemu.qom-qapi/tests/functional/arm/test_integratorcp.py:83: E1101: Module 'cv2' has no 'imread' member (no-member)"

Note: I also tried with extension-pkg-allow-list, but that didn't work
for some reason.

Signed-off-by: Marc-André Lureau <[email protected]>
---
 tests/functional/pylintrc | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tests/functional/pylintrc b/tests/functional/pylintrc
index 949bea611fe4..373aabd6ca3f 100644
--- a/tests/functional/pylintrc
+++ b/tests/functional/pylintrc
@@ -79,6 +79,12 @@ disable=bad-inline-option,
         useless-suppression,
 
 
+[TYPECHECK]
+
+# cv2 is a C extension module whose members are not visible to pylint
+generated-members=cv2.*
+
+
 [SIMILARITIES]
 
 # Minimum lines number of a similarity.
-- 
2.55.0.543.g5ebe2ebe4ea8