u-boot-aspeed: Add distro feature for mac2 support

Add a distro feature to enable aspeed nic driver to enable MAC1
and MAC2.

The aspeednic patch is copied from meta-ingrasys/meta-zaius, it is
also required by fp5280g2. To avoid duplication, this distro feature
has been added.

Both meta-fp5280g2 and meta-zaius will be updated to use the distro feature.

Tested: tested on fp5280g2, and both Ethernet ports worked

(From meta-phosphor rev: 5a8e7c5a6efea492b82d710c465125fc9d0afdb9)

Signed-off-by: John Wang <wangzqbj@inspur.com>
Change-Id: Ia754595c5e3762f69397c03021ffe29ea5b9afcc
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-phosphor/aspeed-layer/recipes-bsp/u-boot/u-boot-aspeed.inc b/meta-phosphor/aspeed-layer/recipes-bsp/u-boot/u-boot-aspeed.inc
index bc81be1..5329b2c 100644
--- a/meta-phosphor/aspeed-layer/recipes-bsp/u-boot/u-boot-aspeed.inc
+++ b/meta-phosphor/aspeed-layer/recipes-bsp/u-boot/u-boot-aspeed.inc
@@ -12,6 +12,9 @@
 SRC_URI_append_aspeed_df-isolate-bmc = " \
     file://0001-aspeed-Disable-unnecessary-features.patch \
     "
+SRC_URI_append_aspeed_df-aspeednic-use-mac2 = " \
+    file://0002-board-aspeed-aspeednic-Use-MAC2-for-networking.patch \
+    "
 
 do_patch[depends] += "os-release:do_populate_sysroot"