common: Drop net.h from common header

Move this header out of the common header. Network support is used in
quite a few places but it still does not warrant blanket inclusion.

Note that this net.h header itself has quite a lot in it. It could be
split into the driver-mode support, functions, structures, checksumming,
etc.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c
index 2cf3f4b..fd3b408 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c
@@ -10,7 +10,9 @@
 #include <fsl_ddr_sdram.h>
 #include <init.h>
 #include <hang.h>
+#include <net.h>
 #include <vsprintf.h>
+#include <asm/cache.h>
 #include <asm/io.h>
 #include <linux/errno.h>
 #include <asm/system.h>
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
index 0696ea6..c968f18 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
@@ -7,6 +7,7 @@
 #include <common.h>
 #include <clock_legacy.h>
 #include <efi_loader.h>
+#include <asm/cache.h>
 #include <linux/libfdt.h>
 #include <fdt_support.h>
 #include <phy.h>
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/mp.c b/arch/arm/cpu/armv8/fsl-layerscape/mp.c
index ca07c68..4e779dd 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/mp.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/mp.c
@@ -5,6 +5,7 @@
 
 #include <common.h>
 #include <cpu_func.h>
+#include <asm/cache.h>
 #include <asm/io.h>
 #include <asm/system.h>
 #include <asm/arch/mp.h>
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/ppa.c b/arch/arm/cpu/armv8/fsl-layerscape/ppa.c
index d391f93..daaaeab 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/ppa.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/ppa.c
@@ -6,6 +6,7 @@
 #include <malloc.h>
 #include <config.h>
 #include <errno.h>
+#include <asm/cache.h>
 #include <asm/system.h>
 #include <asm/types.h>
 #include <asm/arch/soc.h>
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/soc.c b/arch/arm/cpu/armv8/fsl-layerscape/soc.c
index 28bb1d7..664f12e 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/soc.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/soc.c
@@ -14,6 +14,7 @@
 #include <linux/sizes.h>
 #include <asm/arch/fsl_serdes.h>
 #include <asm/arch/soc.h>
+#include <asm/cache.h>
 #include <asm/io.h>
 #include <asm/global_data.h>
 #include <asm/arch-fsl-layerscape/config.h>
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/spl.c b/arch/arm/cpu/armv8/fsl-layerscape/spl.c
index accad6e..2c0ce80 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/spl.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/spl.c
@@ -8,6 +8,7 @@
 #include <cpu_func.h>
 #include <env.h>
 #include <spl.h>
+#include <asm/cache.h>
 #include <asm/io.h>
 #include <fsl_ifc.h>
 #include <i2c.h>