purge usage of platform_whitelist

[zephyrbot]

Reported by Inaky Perez-Gonzalez:

Currently too many testcases and samples define a platform_whitelist, which then makes it arduous to go and revise everytime a new platform (board) is added.

platform_whitelist should be used only when that sample or testcase can ONLY run in said platform.

The following list are those who most likely should not be using it:

tests/crypto/test_cbc/testcase.ini:5:platform_whitelist = qemu_x86 qemu_cortex_m3
tests/crypto/test_ccm_mode/testcase.ini:5:platform_whitelist = qemu_x86 qemu_cortex_m3
tests/crypto/test_cmac_mode/testcase.ini:5:platform_whitelist = qemu_x86 qemu_cortex_m3
tests/crypto/test_ctr/testcase.ini:5:platform_whitelist = qemu_x86 qemu_cortex_m3
tests/crypto/test_hmac/testcase.ini:6:platform_whitelist = qemu_x86 qemu_cortex_m3
tests/crypto/test_prng/testcase.ini:5:platform_whitelist = qemu_x86 qemu_cortex_m3
samples/fs/fat_fs/testcase.ini:5:platform_whitelist = arduino_101
samples/fs/fat_fs/testcase.ini:12:platform_whitelist = arduino_101
samples/net/coap_observe_client/testcase.ini:5:platform_whitelist = qemu_x86
samples/net/coap_observe_client/testcase.ini:12:platform_whitelist = qemu_x86
samples/net/coap_observe_client/testcase.ini:19:platform_whitelist = qemu_x86
samples/net/coap_server/testcase.ini:5:platform_whitelist = qemu_x86
samples/net/coap_server/testcase.ini:14:platform_whitelist = qemu_x86
samples/net/coap_server/testcase.ini:21:platform_whitelist = qemu_x86
samples/net/dhcp_client/testcase.ini:5:platform_whitelist = galileo
samples/net/dns_client/testcase.ini:5:platform_whitelist = galileo
samples/net/dtls_client/testcase.ini:5:platform_whitelist = qemu_x86
samples/net/dtls_client/testcase.ini:14:platform_whitelist = qemu_x86
samples/net/dtls_server/testcase.ini:5:platform_whitelist = qemu_x86
samples/net/dtls_server/testcase.ini:14:platform_whitelist = qemu_x86
samples/net/echo_client/testcase.ini:5:platform_whitelist = minnowboard
samples/net/echo_client/testcase.ini:12:platform_whitelist = minnowboard
samples/net/echo_server/testcase.ini:5:platform_whitelist = minnowboard
samples/net/echo_server/testcase.ini:12:platform_whitelist = minnowboard
samples/net/mbedtls_sslclient/testcase.ini:5:platform_whitelist = galileo
samples/net/nats_clients/publisher/testcase.ini:5:platform_whitelist = galileo
samples/net/nats_clients/subscriber/testcase.ini:5:platform_whitelist = galileo
samples/net/zperf/testcase.ini:5:platform_whitelist = galileo

There is no reason why none of those should be restricted (except maybe to 'something wit a network interface').

(Imported from Jira ZEP-774)

[zephyrbot]

by Anas Nashif:

what we need to purge and cleanup is the platform_exclude, thats where you have to go and update testcases. Defining a test-case as runnable on a class of systems only is the correct thing, making it run on everything and then start excluding is the main issue we have.

[zephyrbot]

by Anas Nashif:

duplicates GH-3831

[zephyrbot]

Duplicate of GH-3831