[U-Boot] [PATCH 2/2] serial: arm_dcc: Fix compilation warning and remove unneeded initialization

[Marek Vasut]

Dear Michal Simek,

> - arm_dcc_dev is already initialized.
> - Remove unused rc variable
> Warning log:
> arm_dcc.c: In function 'drv_arm_dcc_init':
> arm_dcc.c:145:6: warning: unused variable 'rc' [-Wunused-variable]
> 
> Signed-off-by: Michal Simek <michal.simek at xilinx.com>

Acked-by: Marek Vasut <marex at denx.de>

Best regards,
Marek Vasut