overlays: xtensa_espressif_esp32s3: gdb: update xtensa-config.c

This commit updates the `xtensa_tdep` global variable definition in the
GDB `xtensa-config.c` to use the new type introduced in GDB 12.1.

Signed-off-by: Sylvio Alves <[email protected]>

Author: sylvioalves

overlays/xtensa_espressif_esp32s3/gdb/gdb/xtensa-config.c

@@ -119,7 +119,7 @@ const xtensa_mask_t xtensa_mask42 = { 4, xtensa_submask42 };
 
 
 /* Register map.  */
-xtensa_register_t rmap[] = 
+static xtensa_register_t rmap[] =
 {
   /*    idx ofs bi sz al targno  flags cp typ group name  */
   XTREG(  0,  0,32, 4, 4,0x0020,0x0006,-2, 9,0x2100,pc,          0,0,0,0,0,0)
@@ -494,8 +494,3 @@ xtensa_register_t rmap[] =
 };
 
 
-
-#ifdef XTENSA_CONFIG_INSTANTIATE
-XTENSA_CONFIG_INSTANTIATE(rmap,16)
-#endif
-