tree cc1f062afafafff67af87f22892894d007f7e0f0
parent 98fe2415038f77c661a0387c119b0198b695af20
author Yang Wei <yang.wei@oppo.com> 1579480451 +0000
committer CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> 1579480451 +0000

[zircon][uart] remove unnecessary valid check for uart_base

The uart_base has been checked in function xxx_uart_init_early, and
pdev_uart_ops will not be registered if uart_base was not valid. So
there is no need to check uart_base in functions of pdev_uart_ops.

Change-Id: Ie82cc9a541294885985530e7eaabfbbc814ff953