Change RGB_MATRIX_STARTUP_* defines to RGB_MATRIX_DEFAULT_* (#19079)

keyboards/chromatonemini/config.h

@@ -64,7 +64,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #   define LED_HITS_TO_REMEMBER 10
 
 #   define RGB_MATRIX_MAXIMUM_BRIGHTNESS 50
-#   define RGB_MATRIX_STARTUP_SPD 127
+#   define RGB_MATRIX_DEFAULT_SPD 127
 #   define RGB_MATRIX_CENTER { 124, 32 }
 // the above brighness setting has no effect on rgb_matrix_set_color().
 // Use darker colors instead.