Improve comments for interuptible key agreement APIs

Signed-off-by: Waleed Elmelegy <waleed.elmelegy@arm.com>
diff --git a/tf-psa-crypto/core/psa_crypto.c b/tf-psa-crypto/core/psa_crypto.c
index c110ad2..edbcba3 100644
--- a/tf-psa-crypto/core/psa_crypto.c
+++ b/tf-psa-crypto/core/psa_crypto.c
@@ -8144,7 +8144,7 @@
 
     operation->num_ops = 0;
 
-    /* To be removed later when driver dispatch is added. */
+    /* We only support the builtin/Mbed TLS driver for now. */
     operation->id = PSA_CRYPTO_MBED_TLS_DRIVER_ID;
 
     status = mbedtls_psa_generate_key_iop_setup(&operation->ctx, attributes);
diff --git a/tf-psa-crypto/include/psa/crypto.h b/tf-psa-crypto/include/psa/crypto.h
index aa58033..58b6887 100644
--- a/tf-psa-crypto/include/psa/crypto.h
+++ b/tf-psa-crypto/include/psa/crypto.h
@@ -4360,8 +4360,9 @@
  *                              time. The only guarantee is that lower values
  *                              for \p max_ops means functions will block for a
  *                              lesser maximum amount of time. The functions
- *                              \c psa_sign_interruptible_get_num_ops() and
- *                              \c psa_verify_interruptible_get_num_ops() are
+ *                              \c psa_sign_interruptible_get_num_ops(),
+ *                              \c psa_verify_interruptible_get_num_ops() and
+ *                              \c psa_generate_key_iop_get_num_ops() are
  *                              provided to help with tuning this value.
  *
  * \note                        This value defaults to