[RTEMS Project] #2897: Update termios.h to match the latest FREEBSD definitions

[RTEMS trac]

#2897: Update termios.h to match the latest FREEBSD definitions
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 Reporter:  kirspelk     |      Owner:
     Type:  enhancement  |     Status:  new
 Priority:  normal       |  Milestone:  4.12
Component:  cpukit       |    Version:  4.12
 Severity:  normal       |   Keywords:
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 The FREEBSD struct termios separates out the input and output baud rates
 into individual speed_t variables.  It also supports more flag options.
 The big benefit is that the rtems-libbsd tty code can be ported cleanly
 without the need to fixup the input and output baud rates.  This should be
 a transparent change unless someone was manipulating the baud rates
 directly through the c_cflags (not using the cfgetispeed, cfgetospeed,
 cfsetispeed, cfsetospeed functions).

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Ticket URL: <http://devel.rtems.org/ticket/2897>
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