Make it easier to add TF-M in an app by selecting and implying the
necessary configs so the app doesn't have to specify the configs itself.
Remove unneeded configs from the prj.conf files in the tfm samples.
Also, fix case in key file name.
Signed-off-by: Øyvind Rønningstad <oyvind.ronningstad@nordicsemi.no>
This commit adds a `tfm_level_1` samples app that shows how
to use the PSA APIs in IPC mode in a real-world example.
It makes use of the crypto, initial attestation and secure
storage modules.
Signed-off-by: Kevin Townsend <kevin@ktownsend.com>