add kiss radio env to most of the variants

variants/wio-tracker-l1-eink/platformio.ini

@@ -68,3 +68,8 @@ lib_deps = ${WioTrackerL1Eink.lib_deps}
   densaugeo/base64 @ ~1.4.0
   end2endzone/NonBlockingRTTTL@^1.3.0
 debug_tool=stlink
+
+[env:WioTrackerL1Eink_kiss_modem]
+extends = WioTrackerL1Eink
+build_src_filter = ${WioTrackerL1Eink.build_src_filter}
+  +<../examples/kiss_modem/>