uboot-imx

MIPS: QCA AP121: remove debug_uart_init call

In order to add a generic MIPS debug_uart_init call right before the call to
board_early_init_f, we need to remove all calls to debug_uart_init from every
MIPS boards.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>