refactor(import): uniformize map.jinja imports

This is already done mostly everywhere and covers few remaining
locations.

Author: faudebert

nginx/certificates.sls

@@ -1,4 +1,5 @@
-{% from 'nginx/map.jinja' import nginx with context %}
+{%- set tplroot = tpldir.split('/')[0] %}
+{%- from tplroot ~ '/map.jinja' import nginx with context %}
 
 include:
   - nginx.service

nginx/init.sls

@@ -2,7 +2,8 @@
 #
 # Meta-state to fully install nginx.
 
-{%- from 'nginx/map.jinja' import nginx, sls_block with context %}
+{%- set tplroot = tpldir.split('/')[0] %}
+{%- from tplroot ~ '/map.jinja' import nginx with context %}
 
 include:
   {%- if nginx.ng is defined %}

nginx/pkg.sls

@@ -2,7 +2,8 @@
 #
 # Manages installation of nginx from pkg.
 
-{% from 'nginx/map.jinja' import nginx, sls_block with context %}
+{%- set tplroot = tpldir.split('/')[0] %}
+{%- from tplroot ~ '/map.jinja' import nginx, sls_block with context %}
 {%- if nginx.install_from_repo %}
   {% set from_official = true %}
   {% set from_ppa = false %}

nginx/src.sls

@@ -2,7 +2,8 @@
 #
 # Manages installation of nginx from source.
 
-{% from 'nginx/map.jinja' import nginx, sls_block with context %}
+{%- set tplroot = tpldir.split('/')[0] %}
+{%- from tplroot ~ '/map.jinja' import nginx, sls_block with context %}
 
 nginx_deps:
   pkg.installed: