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/clk/mediatek/clk-mt7623.c b/drivers/clk/mediatek/clk-mt7623.c
index dfce32e..c44969a 100644
--- a/drivers/clk/mediatek/clk-mt7623.c
+++ b/drivers/clk/mediatek/clk-mt7623.c
@@ -8,6 +8,7 @@
 
 #include <common.h>
 #include <dm.h>
+#include <log.h>
 #include <asm/arch-mediatek/reset.h>
 #include <asm/io.h>
 #include <dt-bindings/clock/mt7623-clk.h>