No longer install Python 2 sonic_platform package for Broadcom platforms; only install Python 3 package. Signed-off-by: Volodymyr Boyko <volodymyrx.boiko@intel.com>
prerm is needed for platform modules package to be properly removed. Added prerm to remove installed in postinst wheel packages. Signed-off-by: Volodymyr Boyko <volodymyrx.boiko@intel.com>