i2c_shell: add missing i3c include

This is necessary for the I3C device type check, tested with:

west build -p -b nucleo_h563zi samples/subsys/shell/shell_module
-DCONFIG_I2C=y -DCONFIG_I2C_SHELL=y -DCONFIG_I3C=y

and

west build -p -b nucleo_h563zi samples/subsys/shell/shell_module
-DCONFIG_I2C=y -DCONFIG_I2C_SHELL=y -DCONFIG_I3C=n

Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>

drivers/i2c/i2c_shell.c

@@ -5,6 +5,7 @@
  */
 
 #include <zephyr/drivers/i2c.h>
+#include <zephyr/drivers/i3c.h>
 #include <zephyr/shell/shell.h>
 #include <stdlib.h>
 #include <string.h>