test: skip test-crypto-dh-keys on armv6 and armv7
The test is too slow to run on the Raspberry Pi bots. (It takes over 500 seconds to run on Pi 3 bots and over 900 seconds on Pi 2 bots.) Skip it on armv6 and armv7.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
The test is too slow to run on the Raspberry Pi bots. (It takes over 500 seconds to run on Pi 3 bots and over 900 seconds on Pi 2 bots.) Skip it on armv6 and armv7.