Add pinctrl for uart{0, 1} nodes

Set pinmux to uart for uart0 and uart1 pins since the uarts are enabled
in the device tree. uart0 previously was set in the u-boot device tree.

Add pinctrl support in MTK tty serial driver.

Change-Id: Ib0cd4d4014dcd3769d090172682b6a9442055819
2 files changed