freerdp: Fixes for integer overflows

freerdp was patched to fix several integer overflows.

These security issues were fixed:
* Integer overflow (CVE-2014-0791)
* Integer overflows in memory allocations in client/X11/xf_graphics.c (CVE-2014-0250)

Fixed bugs
bnc#857491
VUL-0: CVE-2014-0791: freerdp: integer overflow
bnc#880317
VUL-0: freerdp: CVE-2014-0250: integer overflows in memory allocations in client/X11/xf_graphics.c
Selected Binaries
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