UPDATE 2-Netanyahu calls for "better deal" with Iran over nuclear programme

* Netanyahu wants rollback of Iran's nuclear infrastructure * Holds talks with U.S. congressional speaker Boehner * Boehner says U.S.-Israeli bonds "strong as ever" (Adds Boehner comments) By Jeffrey Heller JERUSALEM, April 1 (Reuters) - Israeli Prime Minister Benjamin Netanyahu said on Wednesday it was not too late for world powers locked in nuclear negotiations with Iran to demand a "better deal". He made the comments before meeting in Jerusalem with the speaker of the U.S. House of Representa