NFC: Select CRC_CCITT for SHDLC link layer of HCI based drivers

The SHDLC link layer of HCI based drivers uses CRC-CCITT and thus
needs to select that kernel option.

Otherwise it ends up with this linking error:

net/built-in.o: In function `nfc_shdlc_add_len_crc':
net/nfc/hci/shdlc.c:113: undefined reference to `crc_ccitt'
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
Acked-by: NSamuel Ortiz <sameo@linux.intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

net/nfc/hci/Kconfig

@@ -9,6 +9,7 @@ config NFC_HCI
 
 config NFC_SHDLC
 	depends on NFC_HCI
+	select CRC_CCITT
 	bool "SHDLC link layer for HCI based NFC drivers"
 	default n
 	---help---