Fix the collection of ECC curves and DH groups
Fix the collection of ECC curves and DH groups

PSA_ECC_CURVE_xxx and PSA_DH_GROUP_xxx were not collected from
headers, only from test suites.

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