serial core: fix new kernel-doc warnings

Fix new kernel-doc warnings in serial_core.[hc] files.

  Warning(include/linux/serial_core.h:485): No description found for parameter 'uport'
  Warning(include/linux/serial_core.h:485): Excess function parameter 'port' description in 'uart_handle_dcd_change'
  Warning(include/linux/serial_core.h:511): No description found for parameter 'uport'
  Warning(include/linux/serial_core.h:511): Excess function parameter 'port' description in 'uart_handle_cts_change'
  Warning(drivers/serial/serial_core.c:2437): No description found for parameter 'uport'
  Warning(drivers/serial/serial_core.c:2437): Excess function parameter 'port' description in 'uart_add_one_port'
  Warning(drivers/serial/serial_core.c:2509): No description found for parameter 'uport'
  Warning(drivers/serial/serial_core.c:2509): Excess function parameter 'port' description in 'uart_remove_one_port'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c
index 2514d00..1689bda 100644
--- a/drivers/serial/serial_core.c
+++ b/drivers/serial/serial_core.c
@@ -2426,7 +2426,7 @@
 /**
  *	uart_add_one_port - attach a driver-defined port structure
  *	@drv: pointer to the uart low level driver structure for this port
- *	@port: uart port structure to use for this port.
+ *	@uport: uart port structure to use for this port.
  *
  *	This allows the driver to register its own uart_port structure
  *	with the core driver.  The main purpose is to allow the low
@@ -2499,7 +2499,7 @@
 /**
  *	uart_remove_one_port - detach a driver defined port structure
  *	@drv: pointer to the uart low level driver structure for this port
- *	@port: uart port structure for this port
+ *	@uport: uart port structure for this port
  *
  *	This unhooks (and hangs up) the specified port structure from the
  *	core driver.  No further calls will be made to the low-level code