Add support for PCMCIA card Sierra WIreless AC850

Add support for Sierra Wireless AC850 which has the same Ids as the
AC710/750 but has a different firmware.

Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/serial/serial_cs.c

@@ -911,6 +911,7 @@ static struct pcmcia_device_id serial_ids[] = {
 	PCMCIA_MFC_DEVICE_CIS_MANF_CARD(1, 0x0175, 0x0000, "DP83903.cis"),
 	PCMCIA_MFC_DEVICE_CIS_MANF_CARD(1, 0x0101, 0x0035, "3CXEM556.cis"),
 	PCMCIA_MFC_DEVICE_CIS_MANF_CARD(1, 0x0101, 0x003d, "3CXEM556.cis"),
+	PCMCIA_DEVICE_CIS_PROD_ID12("Sierra Wireless", "AC850", 0xd85f6206, 0x42a2c018, "SW_8xx_SER.cis"),  /* Sierra Wireless AC850 3G Network Adapter R1 */
 	PCMCIA_DEVICE_CIS_MANF_CARD(0x0192, 0x0710, "SW_7xx_SER.cis"),	/* Sierra Wireless AC710/AC750 GPRS Network Adapter R1 */
 	PCMCIA_DEVICE_CIS_MANF_CARD(0x0192, 0xa555, "SW_555_SER.cis"),  /* Sierra Aircard 555 CDMA 1xrtt Modem -- pre update */
 	PCMCIA_DEVICE_CIS_MANF_CARD(0x013f, 0xa555, "SW_555_SER.cis"),  /* Sierra Aircard 555 CDMA 1xrtt Modem -- post update */