atmel_serial: fix RTS high after initialization in RS485 mode
atmel_serial: fix RTS high after initialization in RS485 mode

When working in RS485 mode, the atmel_serial driver keeps RTS high after
the initialization of the serial port.  It goes low only after the first
character has been sent.

[5c1e68b099950c134891f0b6e179498a8ebe9cf9@linux-foundation.org: simplify code]
Signed-off-by: Claudio Scordino <c3923186c4c9da9c766af46f22a325cd4677020a@evidence.eu.com>
Signed-off-by: Arkadiusz Bubala <1998e8b55c5a9d20150a9c80d34f265b3d8ad0c9@gmail.com>
Tested-by: Arkadiusz Bubala <1998e8b55c5a9d20150a9c80d34f265b3d8ad0c9@gmail.com>
Cc: Nicolas Ferre <45b517be0e5ec6dc3a39715767c1d18e090d39b4@atmel.com>
Cc: Greg KH <79e2475f81a6317276bf7cbb3958b20d289b78df@kroah.com>
Signed-off-by: Andrew Morton <5c1e68b099950c134891f0b6e179498a8ebe9cf9@linux-foundation.org>
Signed-off-by: Linus Torvalds <69652caca27c8b940640ad396ab71f93cacec34f@linux-foundation.org>

KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs