make install-ext-deps broken due to nasm site being offline for days.
curl: (7) Failed to connect to www.nasm.us port 443: Connection refused
curl: (7) Failed to connect to www.nasm.us port 80: Connection refused
Pointing url to mirror at Oregon State University for the time being.
https://ftp.osuosl.org/pub/blfs/conglomeration/nasm/$(nasm_tarball)
Change-Id: I6310337ae6946fbcd5fd653dcd3780ec7e97fe9a
Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>