ti814x_evm: add ti814x evm board support

Add TI814X EVM board directory, config file, and MAINTAINERS
entry. Enable build.

Signed-off-by: Matt Porter <mporter@ti.com>
Reviewed-by: Tom Rini <trini@ti.com>
[trini: Adapt to recent omap_hsmmc requirements, Matt re-tested]
Signed-off-by: Tom Rini <trini@ti.com>
diff --git a/board/ti/ti814x/evm.h b/board/ti/ti814x/evm.h
new file mode 100644
index 0000000..40f8710
--- /dev/null
+++ b/board/ti/ti814x/evm.h
@@ -0,0 +1,7 @@
+#ifndef _EVM_H
+#define _EVM_H
+
+void enable_uart0_pin_mux(void);
+void enable_mmc1_pin_mux(void);
+
+#endif /* _EVM_H */