Add legacy inlines for more termios stuff.

Test: make checkbuild # with my versioner-in-build patches
Bug: https://github.com/android-ndk/ndk/issues/302
Change-Id: Ib00b5dadf23592d101486b4f2188285ec03c9e2a
diff --git a/libc/include/termios.h b/libc/include/termios.h
index 49ffcd2..66ae71c 100644
--- a/libc/include/termios.h
+++ b/libc/include/termios.h
@@ -40,8 +40,10 @@
 speed_t cfgetispeed(const struct termios*) __INTRODUCED_IN(21);
 speed_t cfgetospeed(const struct termios*) __INTRODUCED_IN(21);
 void cfmakeraw(struct termios*) __INTRODUCED_IN(21);
+int cfsetspeed(struct termios*, speed_t) __INTRODUCED_IN(21);
 int cfsetispeed(struct termios*, speed_t) __INTRODUCED_IN(21);
 int cfsetospeed(struct termios*, speed_t) __INTRODUCED_IN(21);
+int tcdrain(int) __INTRODUCED_IN(21);
 int tcflow(int, int) __INTRODUCED_IN(21);
 int tcflush(int, int) __INTRODUCED_IN(21);
 int tcgetattr(int, struct termios*) __INTRODUCED_IN(21);
@@ -50,9 +52,6 @@
 int tcsetattr(int, int, const struct termios*) __INTRODUCED_IN(21);
 #endif
 
-int cfsetspeed(struct termios*, speed_t) __INTRODUCED_IN(21);
-int tcdrain(int) __INTRODUCED_IN(21);
-
 __END_DECLS
 
 #include <android/legacy_termios_inlines.h>