HONG KONG, Sept 15 (Reuters) - China’s upcoming Southbound Bond Connect scheme will include all tradable bonds in Hong Kong regardless of their currency, the Hong Kong Monetary Authority’s (HKMA) deputy chief executive said in a briefing on Wednesday. Edmond Lau also said the HKMA would designate market makers for Southbound Bond Connect in “a few days”. (Reporting by Scott Murdoch in Hong Kong; Writing by Andrew Galbraith; Editing by Andrew Heavens)