WASHINGTON, Sept 20 (Reuters) - U.S. House of Representatives Speaker Nancy Pelosi and Senate Majority Leader Chuck Schumer said on Monday that Democrats will include a suspension of the debt limit to 2022 in legislation to fund the federal government. “The legislation to avoid a government shutdown will also include a suspension of the debt limit through December 2022 to once again meet our obligations and protect the full faith and credit of the United States,” they said in a statement. (Reporting by Doina Chiacu; Editing by Chris Reese)