reset: brcmstb-rescal: fix incorrect polarity of status bit

commit f33eb7f2 upstream.

The readl_poll_timeout() should complete when the status bit
is a 1, not 0.

Fixes: 4cf176e5

 ("reset: Add Broadcom STB RESCAL reset controller")
Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20210914221122.62315-1-f.fainelli@gmail.com
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>