libpayload: remove trailing whitespace and run dos2unix

Change-Id: Iffed3602456f5306711c65f06c873c58d4086e11
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/363
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>

payloads/libpayload/curses/PDCurses-3.4/dos/pdcdos.h

@@ -117,7 +117,7 @@ typedef union
     struct
     {
         unsigned short di, di_hi, si, si_hi, bp, bp_hi, res, res_hi,
-                       bx, bx_hi, dx, dx_hi, cx, cx_hi, ax, ax_hi, 
+                       bx, bx_hi, dx, dx_hi, cx, cx_hi, ax, ax_hi,
                        flags, es, ds, fs, gs, ip, cs, sp, ss;
     } w;