Nikkei edges up after upbeat BOJ sentiment survey; caution over Greece caps gains

* Broader contagion risks from Greece will be limited - Goldman Sachs * Fast Retailing contributes hefty points to Nikkei index * Suzuki down on profit-taking after president change By Ayai Tomisawa TOKYO, July 1 (Reuters) - Japanese shares edged up on Wednesday as a central bank survey showed big businesses plan to increase capital spending at the fastest pace in a decade, but gains were limited as investors remained cautious on developments in Greece. Confidence at big Jap