Add two uart device nodes known as the uart1 and uart2 for the bcm7xxx
platforms.
Signed-off-by: NJaedon Shin <jaedon.shin@gmail.com>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: devicetree@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/9991/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>