This update for libgcrypt fixes the following issues:

- CVE-2017-9526: Store the session key in secure memory to ensure that constant
time point operations are used in the MPI library. (bsc#1042326)

- Don't require secure memory for the fips selftests, this prevents the
"Oops, secure memory pool already initialized" warning. (bsc#931932)

This update was imported from the SUSE:SLE-12:Update update project.