tests: subsys: secure_storage: Add filter for small profile

TF-M small profile does not support secure storage (know as Protected
storage), this commit add filter for tfm test case to pass it
incase of small profile been set, see tf-m profiles in below link

https://tf-m-user-guide.trustedfirmware.org/configuration/profiles/index.html



Signed-off-by: Sadik Ozer <sadik.ozer@analog.com>