u-boot-mvebu: clearfog: implement distro-boot

Add a patchfile that implements distro-boot and is meant to go upstream
Also make the other patches git-am'able for easier maintenance.

Signed-off-by: Josua Mayer <josua.mayer97@gmail.com>

package/boot/uboot-mvebu/patches/0001-clearfog-generate-random-MAC-address.patch

@@ -0,0 +1,28 @@
+From ee16ee20205ea374613c3ac7f50209451eb29068 Mon Sep 17 00:00:00 2001
+From: Josua Mayer <josua.mayer97@gmail.com>
+Date: Sun, 23 Apr 2017 18:02:40 +0200
+Subject: [PATCH 1/4] clearfog: generate random MAC address
+
+The Clearfog does not come with predetermined MACs.
+Falling back to random ones ensures ethernet can still operate anyway.
+
+Signed-off-by: Josua Mayer >josua.mayer97@gmail.com>
+---
+ configs/clearfog_defconfig | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/configs/clearfog_defconfig b/configs/clearfog_defconfig
+index 1264871e83..41e94e6daf 100644
+--- a/configs/clearfog_defconfig
++++ b/configs/clearfog_defconfig
+@@ -47,6 +47,7 @@ CONFIG_DEBUG_UART=y
+ CONFIG_DEBUG_UART_BASE=0xd0012000
+ CONFIG_DEBUG_UART_CLOCK=250000000
+ CONFIG_DEBUG_UART_SHIFT=2
++CONFIG_NET_RANDOM_ETHADDR=y
+ CONFIG_SYS_NS16550=y
+ CONFIG_USB=y
+ CONFIG_DM_USB=y
+-- 
+2.12.2
+