common: Drop log.h from common header

Move this header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/gpio/pcf8575_gpio.c b/drivers/gpio/pcf8575_gpio.c
index e93f640..7c790bb 100644
--- a/drivers/gpio/pcf8575_gpio.c
+++ b/drivers/gpio/pcf8575_gpio.c
@@ -26,6 +26,7 @@
 #include <common.h>
 #include <dm.h>
 #include <i2c.h>
+#include <log.h>
 #include <asm-generic/gpio.h>
 
 DECLARE_GLOBAL_DATA_PTR;