USB: serial: rename cp2101 driver to cp210x

Lots of users are getting confused about the cp2101 driver.  It really
does support more than just the cp2101 device, so rename it to cp210x to
try to prevent confusion.

Cc: Craig Shelley <craig@microtron.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/serial/Kconfig b/drivers/usb/serial/Kconfig
index 4afe73e..a65f919 100644
--- a/drivers/usb/serial/Kconfig
+++ b/drivers/usb/serial/Kconfig
@@ -116,14 +116,14 @@
 	  To compile this driver as a module, choose M here: the
 	  module will be called digi_acceleport.
 
-config USB_SERIAL_CP2101
-	tristate "USB CP2101 UART Bridge Controller"
+config USB_SERIAL_CP210X
+	tristate "USB CP210x family of UART Bridge Controllers"
 	help
-	  Say Y here if you want to use a CP2101/CP2102 based USB to RS232
-	  converter.
+	  Say Y here if you want to use a CP2101/CP2102/CP2103 based USB
+	  to RS232 converters.
 
 	  To compile this driver as a module, choose M here: the
-	  module will be called cp2101.
+	  module will be called cp210x.
 
 config USB_SERIAL_CYPRESS_M8
 	tristate "USB Cypress M8 USB Serial Driver"