common: Drop linux/printk.h from common header

This old patch was marked as deferred. Bring it back to life, to continue
towards the removal of common.h

Move this out of the common header and include it only where needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/mtd/nand/raw/zynq_nand.c b/drivers/mtd/nand/raw/zynq_nand.c
index 545fdd7..bacaf13 100644
--- a/drivers/mtd/nand/raw/zynq_nand.c
+++ b/drivers/mtd/nand/raw/zynq_nand.c
@@ -21,6 +21,7 @@
 #include <asm/arch/hardware.h>
 #include <asm/arch/sys_proto.h>
 #include <dm.h>
+#include <linux/printk.h>
 
 /* The NAND flash driver defines */
 #define ZYNQ_NAND_CMD_PHASE		1