[coin-or-Cbc] Do not build for arm due to crash in %check

[pcpa]

commit 0e9ebd563f4b72602776a80917a1f24a897cbbda
Author: pcpa <paulo.cesar.pereira.de.andrade at gmail.com>
Date:   Sun Feb 22 10:58:24 2015 -0300

    Do not build for arm due to crash in %check

 coin-or-Cbc.spec | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/coin-or-Cbc.spec b/coin-or-Cbc.spec
index cc8390c..61ede06 100644
--- a/coin-or-Cbc.spec
+++ b/coin-or-Cbc.spec
@@ -22,6 +22,7 @@ BuildRequires:	lapack-devel
 BuildRequires:	pkgconfig
 BuildRequires:	readline-devel
 BuildRequires:	zlib-devel
+ExclusiveArch:	%{ix86} x86_64
 
 # Install documentation in standard rpm directory
 Patch0:		%{name}-docdir.patch