treewide: correct argument name to user_icon / askpw_icon

src/cryptenroll/cryptenroll-fido2.c

@@ -118,8 +118,8 @@ int enroll_fido2(
                         /* user_id= */ un, strlen(un), /* We pass the user ID and name as the same: the disk's UUID if we have it */
                         /* user_name= */ un,
                         /* user_display_name= */ node,
-                        /* user_icon_name= */ NULL,
-                        /* askpw_icon_name= */ "drive-harddisk",
+                        /* user_icon= */ NULL,
+                        /* askpw_icon= */ "drive-harddisk",
                         /* askpw_credential= */ "cryptenroll.fido2-pin",
                         lock_with,
                         cred_alg,

src/home/homectl-fido2.c

@@ -171,8 +171,8 @@ int identity_add_fido2_parameters(
                         /* user_id= */ fido_un, strlen(fido_un), /* We pass the user ID and name as the same */
                         /* user_name= */ fido_un,
                         /* user_display_name= */ rn ? sd_json_variant_string(rn) : NULL,
-                        /* user_icon_name= */ NULL,
-                        /* askpw_icon_name= */ "user-home",
+                        /* user_icon= */ NULL,
+                        /* askpw_icon= */ "user-home",
                         /* askpw_credential= */ "home.token-pin",
                         lock_with,
                         cred_alg,