drivers/sensors: fix build warning on GCC-12

nuttx/drivers/sensors/wtgahrs2.c: In function ‘wtgahrs2_initialize’:
nuttx/drivers/sensors/wtgahrs2.c:545:22: warning: ‘%lx’ directive output may be truncated writing between 1 and 16 bytes into a region of size 14 [-Wformat-truncation=]
  545 |   snprintf(arg1, 16, "0x%" PRIxPTR, (uintptr_t)rtdata);
      |                      ^~~~~
nuttx/drivers/sensors/wtgahrs2.c:545:25: note: format string is defined here
  545 |   snprintf(arg1, 16, "0x%" PRIxPTR, (uintptr_t)rtdata);
nuttx/drivers/sensors/wtgahrs2.c:545:22: note: directive argument in the range [1, 18446744073709551615]
  545 |   snprintf(arg1, 16, "0x%" PRIxPTR, (uintptr_t)rtdata);
      |                      ^~~~~
nuttx/drivers/sensors/wtgahrs2.c:545:3: note: ‘snprintf’ output between 4 and 19 bytes into a destination of size 16
  545 |   snprintf(arg1, 16, "0x%" PRIxPTR, (uintptr_t)rtdata);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: chao an <[email protected]>

Author: anchao

drivers/sensors/wtgahrs2.c

@@ -435,7 +435,7 @@ int wtgahrs2_initialize(FAR const char *path, int devno)
   FAR struct wtgahrs2_sensor_s *tmp;
   struct termios opt;
   FAR char *argv[2];
-  char arg1[16];
+  char arg1[32];
   int ret;
 
   if (!path)
@@ -542,7 +542,7 @@ int wtgahrs2_initialize(FAR const char *path, int devno)
 
   wtgahrs2_sendcmd(rtdata, g_wtgahrs2_enable_sensor);
 
-  snprintf(arg1, 16, "0x%" PRIxPTR, (uintptr_t)rtdata);
+  snprintf(arg1, sizeof(arg1), "0x%" PRIxPTR, (uintptr_t)rtdata);
   argv[0] = arg1;
   argv[1] = NULL;