Fix generation of systemd socket

systemd sockets names in swupdate.socket are not generated anymore. As
effect, systemd won't create the sockets, that are then created by
SWUpdate at the startup. This hides the issue, because SWUpdate acts as
fallback in case sockets are not present.

Signed-off-by: Stefano Babic <sbabic@denx.de>

recipes-support/swupdate/swupdate.inc

@@ -201,17 +201,21 @@ python () {
     d.setVar('SWUPDATE_SW_VERSIONS_FILE', '/etc/sw-versions')
     for feature in features:
         if feature.startswith('CONFIG_SOCKET_CTRL_PATH='):
-            ctrl_path = feature.split('=')[1].strip()
-            d.setVar('SWUPDATE_SOCKET_CTRL_PATH', ctrl_path)
+            ctrl_path = feature.split('=')[1].strip().replace('""','')
+            if ctrl_path != "":
+               d.setVar('SWUPDATE_SOCKET_CTRL_PATH', ctrl_path)
         elif feature.startswith('CONFIG_SOCKET_PROGRESS_PATH='):
-            prog_path = feature.split('=')[1].strip()
-            d.setVar('SWUPDATE_SOCKET_PROGRESS_PATH', prog_path)
+            prog_path = feature.split('=')[1].strip().replace('""','')
+            if prog_path != "":
+               d.setVar('SWUPDATE_SOCKET_PROGRESS_PATH', prog_path)
         elif feature.startswith('CONFIG_HW_COMPATIBILITY_FILE='):
-            hwrev_file = feature.split('=')[1].strip()
-            d.setVar('SWUPDATE_HW_COMPATIBILITY_FILE', hwrev_file)
+            hwrev_file = feature.split('=')[1].strip().replace('""','')
+            if hwrev_file != "":
+               d.setVar('SWUPDATE_HW_COMPATIBILITY_FILE', hwrev_file)
         elif feature.startswith('CONFIG_SW_VERSIONS_FILE='):
-            swver_file = feature.split('=')[1].strip()
-            d.setVar('SWUPDATE_SW_VERSIONS_FILE', swver_file)
+            swver_file = feature.split('=')[1].strip().replace('""','')
+            if swver_file != "":
+               d.setVar('SWUPDATE_SW_VERSIONS_FILE', swver_file)
 }
 
 do_configure () {