Move buildroot to bsp directory.

bsp/buildroot/package/eigen/Config.in

@@ -0,0 +1,25 @@
+config BR2_PACKAGE_EIGEN
+	bool "eigen"
+	depends on BR2_INSTALL_LIBSTDCPP
+	help
+	  Eigen is a C++ template library for linear algebra: vectors,
+	  matrices, and related algorithms. It is versatile, fast, elegant
+	  and works on many platforms (OS/Compilers).
+
+	  This package only installs header files to the include path.
+	  If you just want to use Eigen, you can use the header files
+	  right away. There is no binary to link to. Eigen is a pure
+	  template library defined in the headers.
+
+	  http://eigen.tuxfamily.org/
+
+if BR2_PACKAGE_EIGEN
+
+config BR2_PACKAGE_EIGEN_UNSUPPORTED_MODULES
+	bool "unsupported modules"
+	help
+	  Install eigen unsupported modules
+endif
+
+comment "eigen needs a toolchain w/ C++"
+	depends on !BR2_INSTALL_LIBSTDCPP