Nyx: emuMMC Manage window, Tools UI, and misc updates

- Add gui_emu_tools: emuMMC Manage window with correct positioning (LV_PROTECT_PARENT + re-parent to win)
- Tools: single SD button (tap = SD partition manager, 3s hold = eMMC)
- Remove emuSD from Nyx UI (tabs, UMS, partition manager); keep bootloader emusd
- Shorten Create emuMMC description text by one character
- Storage/build/config and dependency updates

Co-authored-by: Cursor <cursoragent@cursor.com>

bootloader/l4t/l4t.c

@@ -25,6 +25,7 @@
 #include "../hos/pkg1.h"
 #include "l4t.h"
 #include "l4t_config.inl"
+#include <storage/boot_storage.h>
 
 /*
  * API Revision info
@@ -283,7 +284,7 @@ typedef struct _l4t_ctxt_t
 } l4t_ctxt_t;
 
 #define DRAM_VDD2_OC_MIN_VOLTAGE   1050
-#define DRAM_VDD2_OC_MAX_VOLTAGE   1175
+#define DRAM_VDD2_OC_MAX_VOLTAGE   1250
 #define DRAM_VDD2Q_OC_MAX_VOLTAGE  1237
 #define DRAM_VDDQ_OC_MIN_VOLTAGE   550
 #define DRAM_VDDQ_OC_MAX_VOLTAGE   650
@@ -1026,7 +1027,9 @@ void launch_l4t(const ini_sec_t *ini_sec, int entry_idx, int is_list, bool t210b
 		return;
 
 	// Done loading bootloaders/firmware.
+	boot_storage_end();
 	sd_end();
+	emmc_end();
 
 	// We don't need AHB aperture open.
 	mc_disable_ahb_redirect();