Add HS version of Nebula65b due to different number of per-key-RGB (#16514)

Co-authored-by: Drashna Jaelre <drashna@live.com>
Co-authored-by: yiancar <yiancar@gmail.com>

keyboards/spaceholdings/nebula68b/nebula68b.c

@@ -17,6 +17,7 @@
 #include "nebula68b.h"
 #include <lib/lib8tion/lib8tion.h>
 
+#ifndef KEYBOARD_spaceholdings_nebula68b_hs
 #ifdef RGB_MATRIX_ENABLE
 // clang-format off
 led_config_t g_led_config = { {
@@ -40,6 +41,7 @@ led_config_t g_led_config = { {
 } };
 // clang-format on
 #endif
+#endif
 
 #if defined(RGB_MATRIX_ENABLE) && defined(VIA_ENABLE)
 void raw_hid_receive_kb(uint8_t *data, uint8_t length) {