meta-phosphor: network: Add symlink to git

Add a symbolic link to network.bb named _git.bb and set the preferred
version for the recipe.

(From meta-phosphor rev: 09ffe0166966200860440266e34e495e2160069d)

Change-Id: Ib5facbf6f24f5931eb0b789565c332bc4b0afcd0
Signed-off-by: Patrick Venture <venture@google.com>
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-phosphor/conf/distro/include/phosphor-defaults.inc b/meta-phosphor/conf/distro/include/phosphor-defaults.inc
index 526108e..7d95900 100644
--- a/meta-phosphor/conf/distro/include/phosphor-defaults.inc
+++ b/meta-phosphor/conf/distro/include/phosphor-defaults.inc
@@ -246,3 +246,4 @@
 VIRTUAL-RUNTIME_phosphor-ipmi-providers ?= "phosphor-ipmi-fru"
 
 PREFERRED_VERSION_phosphor-gpio-monitor = "1.0"
+PREFERRED_VERSION_network = "1.0"
diff --git a/meta-phosphor/recipes-phosphor/network/network_git.bb b/meta-phosphor/recipes-phosphor/network/network_git.bb
new file mode 120000
index 0000000..111ac1c
--- /dev/null
+++ b/meta-phosphor/recipes-phosphor/network/network_git.bb
@@ -0,0 +1 @@
+network.bb
\ No newline at end of file