Update defines for ECC PSA configs
Update defines for ECC PSA configs

Use the names as described in
`docs/proposed/psa-conditional-inclusion-c.md which use a transform
like: SECP256R1 -> SECP_R1_256.  The CURVE25519 and CURVE448 become
MONTGOMERY_255 and MONTGOMERY_448.

Signed-off-by: David Brown <0af22db655f3ade5845314d695c1f4910314b0cb@linaro.org>

NXPmicro/mbedtls,Mbed-TLS/mbedtls,NXPmicro/mbedtls,ARMmbed/mbedtls,Mbed-TLS/mbedtls,Mbed-TLS/mbedtls,ARMmbed/mbedtls,ARMmbed/mbedtls,Mbed-TLS/mbedtls,ARMmbed/mbedtls,NXPmicro/mbedtls,NXPmicro/mbedtls