Rename generator-related internal identifiers

    perl -pe 's/crypto_generator/key_derivation/gi' $(git ls-files)
    perl -pe 's/_generator/_key_derivation/gi' $(git ls-files)
diff --git a/tests/suites/test_suite_psa_crypto.function b/tests/suites/test_suite_psa_crypto.function
index 5527e39..52c41e7 100644
--- a/tests/suites/test_suite_psa_crypto.function
+++ b/tests/suites/test_suite_psa_crypto.function
@@ -3996,7 +3996,7 @@
 /* END_CASE */
 
 /* BEGIN_CASE */
-void crypto_generator_init( )
+void key_derivation_init( )
 {
     /* Test each valid way of initializing the object, except for `= {0}`, as
      * Clang 5 complains when `-Wmissing-field-initializers` is used, even
@@ -4064,7 +4064,7 @@
 /* END_CASE */
 
 /* BEGIN_CASE */
-void test_derive_invalid_generator_state( )
+void test_derive_invalid_key_derivation_state( )
 {
     psa_key_handle_t handle = 0;
     size_t key_type = PSA_KEY_TYPE_DERIVE;
@@ -4113,7 +4113,7 @@
 /* END_CASE */
 
 /* BEGIN_CASE */
-void test_derive_invalid_generator_tests( )
+void test_derive_invalid_key_derivation_tests( )
 {
     uint8_t output_buffer[16];
     size_t buffer_size = 16;