LOS ANGELES — With five goals in only two games, Javier Hernández is off to a spectacular start to his second year with the LA Galaxy. Chicharito’s rebound from a rough MLS debut season is going splendidly, and now the Mexican superstar is sharing his good fortune by joining an initiative to fund soccer development in underserved U.S. communities, including two respected youth organizations in Los Angeles. The cause is dear to the heart of Hernández, even though he grew up in Mexico as the scion of two generations of soccer greats. Chicharito knows what the sport did for him in his relatively privileged position, and he wants to share his passion with less-advantaged players in his new soccer home.