spi: spi-pxa2xx: Remove clk.h include

Clock provider drivers generally shouldn't include clk.h because
it's the consumer API. Remove the include here because this is a
provider driver.

Cc: Daniel Mack <[e-mail]>
Cc: Haojian Zhuang <[e-mail]>
Cc: Robert Jarzmik <[e-mail]>
Cc: Mark Brown <[e-mail]>
Signed-off-by: Stephen Boyd <[e-mail]>
Signed-off-by: Mark Brown <[e-mail]>

drivers/spi/spi-pxa2xx-pci.c

···
 #include <linux/of_device.h>
 #include <linux/module.h>
 #include <linux/spi/pxa2xx_spi.h>
-#include <linux/clk.h>
 #include <linux/clk-provider.h>
 
 #include <linux/dmaengine.h>