ec25519: reorder some code to fix a false-positive "may be used uninitialized" warning
ec25519: reorder some code to fix a false-positive "may be used uninitialized" warning

rlei/fastd-android,rlei/fastd-android,fpletz/fastd,fpletz/fastd,rlei/fastd-android,fpletz/fastd,fpletz/fastd,fpletz/fastd,rlei/fastd-android,rlei/fastd-android