The lpc dm causes that UOS can't boot if the parameters are set incorrectly,
it is not friendly to users.
This patch optimizes the lpc error handle flow. UOS always can boot successfully
whatever the lpc settings are.
Signed-off-by: Yuan Liu <yuan1.liu@intel.com>
Reviewed-by: Yu Wang <yu1.wang@intel.com>
Add deinit function for uart.
Another work is add resource cleanup functions which is called
by other components when they are using uart.
Signed-off-by: Yin Fengwei <fengwei.yin@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
Yuan Liu