Bibake is currently too 'chatty' when hash equivalence is enabled. Fix
this by only printing the log output if a rehash happens and it matches
an sstate object.
Also, pass a summary option to the hash checking function. This was
already changed to a mechanism which allows addition of new parameters
so this should be backwards and forwards compatible.
(Bitbake rev: c5c5d786ca968d0e48002fe8acbcc8a63a954b67)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>