curl: Fix for CVE-2021-22898

Applied trivial patch for cve issue CVE-2021-22898

Link: https://github.com/curl/curl/commit/39ce47f219b09c380b81f89fe54ac586c8db6bde



Signed-off-by: Neetika.Singh <Neetika.Singh@kpit.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>