drivers/serial/: remove CVS keywords

This patch removes CVS keywords that weren't updated for a long time in
comments, printk's and MODULE_DESCRIPTION's (no printk's or
MODULE_DESCRIPTION's are completely removed).

While doing this I also found and fixed a missing \n in a printk
in m32r_sio.c

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/serial/pnx8xxx_uart.c b/drivers/serial/pnx8xxx_uart.c
index d0e5a79..1ba5917 100644
--- a/drivers/serial/pnx8xxx_uart.c
+++ b/drivers/serial/pnx8xxx_uart.c
@@ -824,7 +824,7 @@
 {
 	int ret;
 
-	printk(KERN_INFO "Serial: PNX8XXX driver $Revision: 1.2 $\n");
+	printk(KERN_INFO "Serial: PNX8XXX driver\n");
 
 	pnx8xxx_init_ports();