package/lirc-tools: not available on musl

GLOB_BRACE is not supported by the musl libc:
http://www.openwall.com/lists/musl/2013/09/16/1

Upstream correctly rejected the hack proposed by me:
http://patchwork.ozlabs.org/patch/576188/
http://sourceforge.net/p/lirc/tickets/174/#b087

Fixes
http://autobuild.buildroot.net/results/603/603c4426c47220808305a416f3d60fec2d8c02a3/
http://autobuild.buildroot.net/results/c08/c08abddeb5f0d0d1adec63ab4390562e3cfe1087/



Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>