openzwave: avoid /usr/include in libopenzwave.pc

This adds a line in Build/InstallDev to change a hardcoded
'/usr/include' definition in the staging_dir libopenzwave.pc file to use
${prefix}/include instead.  Otherwise dependent packages may fail to
find them.

Signed-off-by: Eneas U de Queiroz <cotequeiroz@gmail.com>

utils/openzwave/Makefile

@@ -90,6 +90,7 @@ define Build/InstallDev
 	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libopenzwave.* $(1)/usr/lib/
 	$(INSTALL_DIR) $(1)/usr/lib/pkgconfig
 	$(CP) $(PKG_INSTALL_DIR)/usr/lib/pkgconfig/libopenzwave.pc $(1)/usr/lib/pkgconfig/
+	$(SED) 's,/usr/include,$$$${prefix}/include,g' $(1)/usr/lib/pkgconfig/libopenzwave.pc
 endef
 
 $(eval $(call BuildPackage,libopenzwave))