bmcweb: srcrev bump a8086647b1..2b5e08e291

Jan Sowinski (2):
      Revert "Revert "Connection and websockets fixes""
      Fix timeout issue during image upload

(From meta-phosphor rev: 693295c75c4b04b8403ca5d6da0433af66185948)

Change-Id: Ic0d65802a91e1deccb8ea3cd6e9efac2c872c91c
Signed-off-by: Andrew Geissler <openbmcbump-github@yahoo.com>
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>