[ci] Really compile the 32 bit llvm as 32 bit.

Author: vargaz

scripts/ci/run-jenkins.sh

@@ -16,7 +16,7 @@ make install
 cd ..
 mkdir -p build32
 cd build32
-../configure --prefix=$PWD/../usr32 --enable-targets="arm arm64" $LLVM_BASE_CONFIGURE_FLAGS CXXFLAGS="-Qunused-arguments"
+../configure --prefix=$PWD/../usr32 --build=i386-apple-darwin11.2.0 --enable-targets="arm arm64" $LLVM_BASE_CONFIGURE_FLAGS CXXFLAGS="-Qunused-arguments"
 make -j4
 make install
 cd ..