crypto: atmel-i2c - Fix build error while CRC16 set to m

If CRYPTO_DEV_ATMEL_ECC is set m, which select CRC16 to m,
while CRYPTO_DEV_ATMEL_SHA204A is set to y, building fails.

drivers/crypto/atmel-i2c.o: In function 'atmel_i2c_checksum':
atmel-i2c.c:(.text+0x16): undefined reference to 'crc16'

Add CRC16 dependency to CRYPTO_DEV_ATMEL_SHA204A
Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: da001fb6 ("crypto: atmel-i2c - add support for SHA204A random number generator")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/Kconfig

@@ -541,6 +541,7 @@ config CRYPTO_DEV_ATMEL_SHA204A
 	depends on I2C
 	select CRYPTO_DEV_ATMEL_I2C
 	select HW_RANDOM
+	select CRC16
 	help
 	  Microhip / Atmel SHA accelerator and RNG.
 	  Select this if you want to use the Microchip / Atmel SHA204A