cpu/kinetis/Makefile.features: Use CPU_MODEL to determine features

[leandrolanzieri]

Contribution description

Now that CPU and CPU_MODEL are defined in the board's Makefile.features they can be used to determine the available features provided by the specific model.

This PR also fixes a check introduced in #9666. As KINETIS_SERIES is defined in kinetis-info.mk, which is included after, periph_ics would never be included as a feature.

Testing procedure

• Check that the provided for kinetis-based boards still the same. E.g.:

BOARD=frdm-kw41z make info-debug-variable-FEATURES_PROVIDED -C examples/hello-world

Issues/PRs references

Fixes check introduced in #9666
Removes hack added in #11479

[fjmolinas]

FEATURES_PROVIDED for kinetis boards is still the same:

for board in frdm-kw41z phynode-kw41z usb-kw41z teensy31 frdm-k22f frdm-k64f; do BOARD=${board} make --no-print-directory -C examples/hello-world/ info-debug-variable-BOARD info-debug-variable-FEATURES_PROVIDED; done > pr.txt; git checkout upstream/master; for board in frdm-kw41z phynode-kw41z usb-kw41z teensy31 frdm-k22f frdm-k64f; do BOARD=${board} make --no-print-directory -C examples/hello-world/ info-debug-variable-BOARD info-debug-variable-FEATURES_PROVIDED; done > master.txt; diff pr.txt master.txt; git checkout pr-12681
#no diff

[fjmolinas]

No board of EA series is currently supported so set CPU_MODEL through command line

CPU_MODEL=s9keaz128aclh48 BOARD=frdm-kw41z make info-debug-variable-FEATURES_PROVIDED -C examples/hello-world --no-print-directory > pr.txt; git checkout upstream/master; CPU_MODEL=s9keaz128aclh48 BOARD=frdm-kw41z make info-debug-variable-FEATURES_PROVIDED -C examples/hello-world --no-print-directory > master.txt; diff pr.txt master.txt
#no diff

[fjmolinas]

ACK

[leandrolanzieri]

Thanks for reviewing and testing