fix(psa): guard Crypto APIs with CRYPTO_SUPPORT

When building Crypto APIs, it requires dependency on external headers,
e.g., Mbedtls headers.  Without the CRYPTO_SUPPORT configuration,
external dependencies are not set up,  building Crypto APIs will fail.

Guard Crypto APIs with the CRYPTO_SUPPORT configuration, to make sure
the code is built only for Crypto enabled case.

Change-Id: Iffe1220b0e6272586c46432b4f8d0512cb39b0b5
Signed-off-by: Leo Yan <leo.yan@arm.com>
2 files changed