[NaCl SDK] nacl_io: Rename termios entry points.

This allows us to clearly distinguish between entry
points that are part of termios and the top level
ones which are trying eliminate (by moving them to
the C libraries).

Review URL: https://codereview.chromium.org/639113002

Cr-Commit-Position: refs/heads/master@{#299032}

native_client_sdk/src/libraries/nacl_io/library.dsc

@@ -66,11 +66,6 @@
         "stream/stream_fs.cc",
         "stream/stream_node.cc",
         "syscalls/access.c",
-        "syscalls/cfgetispeed.c",
-        "syscalls/cfgetospeed.c",
-        "syscalls/cfsetispeed.c",
-        "syscalls/cfsetospeed.c",
-        "syscalls/cfsetspeed.c",
         "syscalls/chown.c",
         "syscalls/fchown.c",
         "syscalls/fcntl.c",
@@ -129,13 +124,18 @@
         "syscalls/socket/shutdown.c",
         "syscalls/socket/socket.c",
         "syscalls/socket/socketpair.c",
+        "syscalls/termios/cfgetispeed.c",
+        "syscalls/termios/cfgetospeed.c",
+        "syscalls/termios/cfsetispeed.c",
+        "syscalls/termios/cfsetospeed.c",
+        "syscalls/termios/cfsetspeed.c",
+        "syscalls/termios/tcflow.c",
+        "syscalls/termios/tcflush.c",
+        "syscalls/termios/tcdrain.c",
+        "syscalls/termios/tcgetattr.c",
+        "syscalls/termios/tcsendbreak.c",
+        "syscalls/termios/tcsetattr.c",
         "syscalls/symlink.c",
-        "syscalls/tcdrain.c",
-        "syscalls/tcflow.c",
-        "syscalls/tcflush.c",
-        "syscalls/tcgetattr.c",
-        "syscalls/tcsendbreak.c",
-        "syscalls/tcsetattr.c",
         "syscalls/truncate.c",
         "syscalls/umount.c",
         "syscalls/uname.c",