RM9000 serial driver

Add support for the integrated serial ports of the MIPS RM9122 processor
and its relatives.

The patch also does some whitespace cleanup.

[akpm@linux-foundation.org: cleanups]
Signed-off-by: Thomas Koeller <thomas.koeller@baslerweb.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
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>
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 130d825..7441a2c 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1042,6 +1042,9 @@
 	select SYS_SUPPORTS_APM_EMULATION
 	select SYS_SUPPORTS_KGDB
 
+config SERIAL_RM9000
+	bool
+
 config PNX8550
 	bool
 	select SOC_PNX8550