By Saeed Azhar NEW YORK (Reuters) -Goldman Sachs' "small investment" of up to $1 billion in asset manager T. Rowe Price is aimed at giving investors broader access to private markets, CEO David Solomon said on Monday. Solomon was explaining the rationale for the investment announced last week, including their partnership to offer retail investors private market products. "This is about our partnering in retirement and in other areas to give investors access to some very, very unique products," Solomon t ...