ARM: dts: bcm11351/21664: add UART, I2C node labels

Add node labels to serial (UART) and I2C nodes for BCM11351 and BCM21664.

Signed-off-by: Stanislav Jakubek <stano.jakubek@gmail.com>
Link: https://lore.kernel.org/r/4c8bb3a725dad9048665d39d0ca728b52152e59e.1685127525.git.stano.jakubek@gmail.com


Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>