phase1: remove kmods in target packages if archive is enabled

OPKG gets confused if kmod packages are present in both, target packages
as well as kernel version specific folder.
Remove them from target packages to make opkg pick the kmods from kmod
archive folder only.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

phase1/master.cfg

@@ -1312,6 +1312,27 @@ def prepareFactory(target):
         )
     )
 
+    factory.addStep(
+        ShellCommand(
+            name="kmodclean",
+            description="Removing kmods from target packages",
+            descriptionDone="Kmods removed",
+            command=[
+                "find",
+                "-name"
+                "kmod-*.ipk",
+                "-delete",
+                Interpolate(
+                    "bin/targets/%(kw:target)s/%(kw:subtarget)s%(prop:libc)s/packages/",
+                    target=target,
+                    subtarget=subtarget,
+                ),
+            ],
+            haltOnFailure=True,
+            doStepIf=IsKmodArchiveEnabled,
+        )
+    )
+
     factory.addStep(
         ShellCommand(
             name="kmodindex",