WASHINGTON — President Trump and Elon Musk are back to being bros as the president welcomed him for two days of Saudi crown prince events and mentioned him by name in a Wednesday speech — following quiet diplomacy by Trump’s advisers to mend one of the nastiest breakups in political history. Trump gave Musk not one, but three, shout-outs during a business-focused speech before Saudi Arabia’s Crown Prince Mohammed bin Salman after the president offered a warm Tuesday night arm-tap to the world’s