common: Drop log.h from common header

Move this header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>

cmd/disk.c

@@ -8,6 +8,7 @@
 #include <command.h>
 #include <cpu_func.h>
 #include <image.h>
+#include <log.h>
 #include <part.h>
 
 int common_diskboot(struct cmd_tbl *cmdtp, const char *intf, int argc,