libc: Add missing <termio.h> header

Change-Id: Id4e020ed330b3eabf09324f9b6d44d3a0f336d87
diff --git a/libc/docs/CHANGES.TXT b/libc/docs/CHANGES.TXT
index 8bfa61e..2ae91d5 100644
--- a/libc/docs/CHANGES.TXT
+++ b/libc/docs/CHANGES.TXT
@@ -16,6 +16,8 @@
 - sysconf() didn't work for some arguments due to a small bug in the
   /proc line parser.
 
+- <termio.h>: added missing header (just includes <termios.h>)
+
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 Differences between Android 2.2. and Android 2.1: