tree 1571ea12dcf032addccf4f8ae814e0d6faba57c7
parent 422dcafe477c7240d03c7b150704c45e0b17be57
author Axel Lin <axel.lin@ingics.com> 1548909132 +0800
committer Lee Jones <lee.jones@linaro.org> 1549536245 +0000

mfd: at91-usart: Constify at91_usart_spi_subdev and at91_usart_serial_subdev

They are never get changed, make them constant.
While at it, fix indent as well.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>