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/power/pmic/as3722.c b/drivers/power/pmic/as3722.c
index 54adcbf..3aa3cce 100644
--- a/drivers/power/pmic/as3722.c
+++ b/drivers/power/pmic/as3722.c
@@ -10,6 +10,7 @@
 #include <errno.h>
 #include <fdtdec.h>
 #include <i2c.h>
+#include <log.h>
 #include <dm/lists.h>
 #include <power/as3722.h>
 #include <power/pmic.h>