Rename salt -> saltstack repository to fix inconsistency with image

Change-Id: Iae43a9d75c492564cdf9d2da6eeaa98888f193fd
diff --git a/linux/system/repo/saltstack/rhel.yml b/linux/system/repo/saltstack/rhel.yml
index b0f28f3..ba045c5 100644
--- a/linux/system/repo/saltstack/rhel.yml
+++ b/linux/system/repo/saltstack/rhel.yml
@@ -6,9 +6,11 @@
   linux:
     system:
       repo:
-        salt:
+        saltstack:
           humanname: "SaltStack repo for RHEL/CentOS ${rhel_repo_releasever}"
           source: "https://repo.saltstack.com/yum/redhat/${_param:rhel_releasever}/${_param:rhel_basearch}/${_param:salt_version}"
           gpgkey: "https://repo.saltstack.com/yum/redhat/${_param:rhel_releasever}/${_param:rhel_basearch}/${_param:salt_version}/SALTSTACK-GPG-KEY.pub"
           gpgcheck: true
           architectures: amd64
+        salt:
+          enabled: false
diff --git a/linux/system/repo/saltstack/trusty.yml b/linux/system/repo/saltstack/trusty.yml
index 68ce215..a4bde9a 100644
--- a/linux/system/repo/saltstack/trusty.yml
+++ b/linux/system/repo/saltstack/trusty.yml
@@ -4,7 +4,9 @@
   linux:
     system:
       repo:
-        salt:
+        saltstack:
           source: "deb http://repo.saltstack.com/apt/ubuntu/14.04/amd64/${_param:salt_version} trusty main"
           architectures: amd64
-          key_url: "http://repo.saltstack.com/apt/ubuntu/14.04/amd64/${_param:salt_version}/SALTSTACK-GPG-KEY.pub"
\ No newline at end of file
+          key_url: "http://repo.saltstack.com/apt/ubuntu/14.04/amd64/${_param:salt_version}/SALTSTACK-GPG-KEY.pub"
+        salt:
+          enabled: false
diff --git a/linux/system/repo/saltstack/xenial.yml b/linux/system/repo/saltstack/xenial.yml
index aca462a..e63ff41 100644
--- a/linux/system/repo/saltstack/xenial.yml
+++ b/linux/system/repo/saltstack/xenial.yml
@@ -4,7 +4,9 @@
   linux:
     system:
       repo:
-        salt:
+        saltstack:
           source: "deb http://repo.saltstack.com/apt/ubuntu/16.04/amd64/${_param:salt_version} xenial main"
           architectures: amd64
-          key_url: "http://repo.saltstack.com/apt/ubuntu/16.04/amd64/${_param:salt_version}/SALTSTACK-GPG-KEY.pub"
\ No newline at end of file
+          key_url: "http://repo.saltstack.com/apt/ubuntu/16.04/amd64/${_param:salt_version}/SALTSTACK-GPG-KEY.pub"
+        salt:
+          enabled: false
diff --git a/linux/system/repo/saltstack_2016_3_trusty.yml b/linux/system/repo/saltstack_2016_3_trusty.yml
index c7e03d7..d968734 100644
--- a/linux/system/repo/saltstack_2016_3_trusty.yml
+++ b/linux/system/repo/saltstack_2016_3_trusty.yml
@@ -3,6 +3,8 @@
   linux:
     system:
       repo:
-        salt:
+        saltstack:
           source: "deb http://repo.saltstack.com/apt/ubuntu/14.04/amd64/2016.3 trusty main"
-          key_url: "http://repo.saltstack.com/apt/ubuntu/14.04/amd64/2016.3/SALTSTACK-GPG-KEY.pub"
\ No newline at end of file
+          key_url: "http://repo.saltstack.com/apt/ubuntu/14.04/amd64/2016.3/SALTSTACK-GPG-KEY.pub"
+        salt:
+          enabled: false
diff --git a/linux/system/repo/saltstack_2016_3_xenial.yml b/linux/system/repo/saltstack_2016_3_xenial.yml
index 413294f..ee2189a 100644
--- a/linux/system/repo/saltstack_2016_3_xenial.yml
+++ b/linux/system/repo/saltstack_2016_3_xenial.yml
@@ -3,6 +3,8 @@
   linux:
     system:
       repo:
-        salt:
+        saltstack:
           source: "deb http://repo.saltstack.com/apt/ubuntu/16.04/amd64/2016.3 xenial main"
-          key_url: "http://repo.saltstack.com/apt/ubuntu/16.04/amd64/2016.3/SALTSTACK-GPG-KEY.pub"
\ No newline at end of file
+          key_url: "http://repo.saltstack.com/apt/ubuntu/16.04/amd64/2016.3/SALTSTACK-GPG-KEY.pub"
+        salt:
+          enabled: false