sandbox: imply CONFIG_TEE (TEE uclass)

Reviewed-by: NSimon Glass <sjg@chromium.org>
Signed-off-by: NJens Wiklander <jens.wiklander@linaro.org>

arch/Kconfig

@@ -105,6 +105,7 @@ config SANDBOX
 	imply HASH_VERIFY
 	imply LZMA
 	imply SCSI
+	imply TEE
 
 config SH
 	bool "SuperH architecture"