msm: peripheral-loader: Print firmware start and end addresses

Make the starting and ending addresses of the pil images more easily
accessible to the average user. The intent is to reduce effort spent
investigating basic image overlap errors.

Change-Id: I4b1cfe1ba7b0090492443bf6fe301821329b5ae3
Signed-off-by: Patrick Daly <pdaly@codeaurora.org>