brcmfmac: sdio: Increase the default timeouts a bit

[Kalle Valo]

> On a Radxa Rock2 board with a Ampak AP6335 (Broadcom 4339 core) it seems
> the card responds very quickly most of the time, unfortunately during
> initialisation it sometimes seems to take just a bit over 2 seconds to
> respond.
> 
> This results intialization failing with message like:
>   brcmf_c_preinit_dcmds: Retreiving cur_etheraddr failed, -52
>   brcmf_bus_start: failed: -52
>   brcmf_sdio_firmware_callback: dongle is not responding
> 
> Increasing the timeout to allow for a bit more headroom allows the
> card to initialize reliably.
> 
> A quick search online after diagnosing/fixing this showed that Google
> has a similar patch in their ChromeOS tree, so this doesn't seem
> specific to the board I'm using.
> 
> Signed-off-by: Sjoerd Simons <sjoerd.simons at collabora.co.uk>
> Reviewed-by: Julian Calaby <julian.calaby at gmail.com>
> Acked-by: Arend van Spriel <arend at broadcom.com>
> Reviewed-by: Douglas Anderson <dianders at chromium.org>

Thanks, applied to wireless-drivers-next.git.

Kalle Valo