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/pm8916_gpio.c b/drivers/gpio/pm8916_gpio.c
index 74a773c..51df536 100644
--- a/drivers/gpio/pm8916_gpio.c
+++ b/drivers/gpio/pm8916_gpio.c
@@ -7,6 +7,7 @@
 
 #include <common.h>
 #include <dm.h>
+#include <log.h>
 #include <power/pmic.h>
 #include <spmi/spmi.h>
 #include <asm/io.h>