spi: pxa2xx: Fix inconsistent indenting

Eliminate the follow smatch warning:

drivers/spi/spi-pxa2xx-pci.c:260 pxa2xx_spi_pci_probe() warn:
inconsistent indenting.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Link: https://lore.kernel.org/r/1621590465-73594-1-git-send-email-jiapeng.chong@linux.alibaba.comSigned-off-by: Mark Brown <broonie@kernel.org>