Fix the RGB_MATRIX_RAINBOW_PINWHEELS animation (#7365)

The internal naming was `PINWHEELS` instead of `RAINBOW_PINWHEELS`
causing a mismatch between animation definition and the function.

quantum/rgb_matrix_animations/rainbow_pinwheels_anim.h

@@ -1,13 +1,13 @@
 #ifndef DISABLE_RGB_MATRIX_RAINBOW_PINWHEELS
-RGB_MATRIX_EFFECT(PINWHEELS)
+RGB_MATRIX_EFFECT(RAINBOW_PINWHEELS)
 #    ifdef RGB_MATRIX_CUSTOM_EFFECT_IMPLS
 
-static HSV PINWHEELS_math(HSV hsv, int8_t sin, int8_t cos, uint8_t i, uint8_t time) {
+static HSV RAINBOW_PINWHEELS_math(HSV hsv, int8_t sin, int8_t cos, uint8_t i, uint8_t time) {
     hsv.h += ((g_led_config.point[i].y - k_rgb_matrix_center.y) * 3 * cos + (56 - abs8(g_led_config.point[i].x - k_rgb_matrix_center.x)) * 3 * sin) / 128;
     return hsv;
 }
 
-bool PINWHEELS(effect_params_t* params) { return effect_runner_sin_cos_i(params, &PINWHEELS_math); }
+bool RAINBOW_PINWHEELS(effect_params_t* params) { return effect_runner_sin_cos_i(params, &RAINBOW_PINWHEELS_math); }
 
 #    endif  // RGB_MATRIX_CUSTOM_EFFECT_IMPLS
 #endif      // DISABLE_RGB_MATRIX_RAINBOW_PINWHEELS