openssl: fix runtime errors with Thumb2 when using binutils 2.29

openssl: fix runtime errors with Thumb2 when using binutils 2.29

When compiling OpenSSL with binutils 2.29 for ARM with Thumb2 enabled
crashes and unexpected behavior occurs. E.g. connecting to a OpenSSH
server using the affected binary fails with:
  ssh_dispatch_run_fatal: Connection to 192.168.10.171 port 22: incorrect signature

Backport upstream bugfix:
https://github.com/openssl/openssl/issues/4659

Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
Acked-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Ross Burton <ross.burton@intel.com>