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[PATCH v2 -next] 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@xxxxxxxxxx>
Fixes: da001fb651b0 ("crypto: atmel-i2c - add support for SHA204A random number generator")
Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
v2:use 'select' instead of 'depends on'
 drivers/crypto/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index fe01a99..603413f 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -542,6 +542,7 @@ config CRYPTO_DEV_ATMEL_SHA204A
 	depends on I2C
 	select HW_RANDOM
+	select CRC16
 	  Microhip / Atmel SHA accelerator and RNG.
 	  Select this if you want to use the Microchip / Atmel SHA204A