utils/genrandconfig: add xenomai custom handling

Add custom cases to make sure that a random configuration with an empty
git, tarball location or version for xenomai doesn't fail. It reverts to
BR2_PACKAGE_XENOMAI_LATEST_VERSION in these cases.

Fixes:
 - http://autobuild.buildroot.org/results/19419759b4add0197b4e629d0b2216c2a07624b2

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

utils/genrandconfig

@@ -542,6 +542,27 @@ def fixup_config(sysinfo, configfile):
         configlines.append('BR2_PACKAGE_REFPOLICY_UPSTREAM_VERSION=y\n')
         configlines.remove('BR2_PACKAGE_REFPOLICY_CUSTOM_REPO_URL=""\n')
 
+    if 'BR2_PACKAGE_XENOMAI=y\n' in configlines and \
+       'BR2_PACKAGE_XENOMAI_CUSTOM_GIT=y\n' in configlines and \
+       'BR2_PACKAGE_XENOMAI_REPOSITORY=""\n' in configlines:
+        configlines.remove('BR2_PACKAGE_XENOMAI_CUSTOM_GIT=y\n')
+        configlines.append('BR2_PACKAGE_XENOMAI_LATEST_VERSION=y\n')
+        configlines.remove('BR2_PACKAGE_XENOMAI_REPOSITORY=""\n')
+
+    if 'BR2_PACKAGE_XENOMAI=y\n' in configlines and \
+       'BR2_PACKAGE_XENOMAI_CUSTOM_TARBALL=y\n' in configlines and \
+       'BR2_PACKAGE_XENOMAI_CUSTOM_TARBALL_URL=""\n' in configlines:
+        configlines.remove('BR2_PACKAGE_XENOMAI_CUSTOM_TARBALL=y\n')
+        configlines.append('BR2_PACKAGE_XENOMAI_LATEST_VERSION=y\n')
+        configlines.remove('BR2_PACKAGE_XENOMAI_CUSTOM_TARBALL_URL=""\n')
+
+    if 'BR2_PACKAGE_XENOMAI=y\n' in configlines and \
+       'BR2_PACKAGE_XENOMAI_CUSTOM_VERSION=y\n' in configlines and \
+       'BR2_PACKAGE_XENOMAI_CUSTOM_VERSION_VALUE=""\n' in configlines:
+        configlines.remove('BR2_PACKAGE_XENOMAI_CUSTOM_VERSION=y\n')
+        configlines.append('BR2_PACKAGE_XENOMAI_LATEST_VERSION=y\n')
+        configlines.remove('BR2_PACKAGE_XENOMAI_CUSTOM_VERSION_VALUE=""\n')
+
     if 'BR2_PACKAGE_XVISOR=y\n' in configlines and \
        'BR2_PACKAGE_XVISOR_USE_CUSTOM_CONFIG=y\n' in configlines and \
        'BR2_PACKAGE_XVISOR_CUSTOM_CONFIG_FILE=""\n' in configlines: