ARM: SAMSUNG: Fix switching FIFO in arch_enable_uart_fifo function
ARM: SAMSUNG: Fix switching FIFO in arch_enable_uart_fifo function

When CONFIG_S3C_BOOT_UART_FORCE_FIFO symbol is set, we should
enable FIFO but actually switch command is missing in the code.
This patch adds this switching.

Signed-off-by: Alexander Shiyan <2d24902f83da69c248f5b0282406fefa25814305@mail.ru>
Reviewed-by: Tomasz Figa <c4885e520559c7b5b4fe1e9e188b924d2debd35e@samsung.com>
Signed-off-by: Kukjin Kim <3fc711f4e08bc570a586748633ff7c76d0e1e253@samsung.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs