common: Drop init.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/board/liebherr/display5/display5.c b/board/liebherr/display5/display5.c
index a362d25..b979ddd 100644
--- a/board/liebherr/display5/display5.c
+++ b/board/liebherr/display5/display5.c
@@ -7,6 +7,7 @@
 #include <common.h>
 #include <dm.h>
 #include <fdt_support.h>
+#include <init.h>
 #include <asm/io.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/imx-regs.h>
diff --git a/board/liebherr/display5/spl.c b/board/liebherr/display5/spl.c
index 0f5eab7..fc3ebaf 100644
--- a/board/liebherr/display5/spl.c
+++ b/board/liebherr/display5/spl.c
@@ -8,6 +8,7 @@
 #include <cpu_func.h>
 #include <env.h>
 #include <image.h>
+#include <init.h>
 #include <serial.h>
 #include <spl.h>
 #include <linux/libfdt.h>
diff --git a/board/liebherr/mccmon6/spl.c b/board/liebherr/mccmon6/spl.c
index 8ed8e03..f40e814 100644
--- a/board/liebherr/mccmon6/spl.c
+++ b/board/liebherr/mccmon6/spl.c
@@ -6,6 +6,7 @@
  */
 
 #include <image.h>
+#include <init.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/imx-regs.h>
 #include <asm/arch/iomux.h>
diff --git a/board/liebherr/xea/xea.c b/board/liebherr/xea/xea.c
index 95c9064..41fa212 100644
--- a/board/liebherr/xea/xea.c
+++ b/board/liebherr/xea/xea.c
@@ -15,6 +15,7 @@
 
 #include <common.h>
 #include <fdt_support.h>
+#include <init.h>
 #include <net.h>
 #include <asm/gpio.h>
 #include <asm/io.h>