curl: cleanup CVE patches for hardknott

curl: cleanup CVE patches for hardknott

The patch backported to address CVE-2021-22890 was missing a bracket to
properly close out the logic in lib/vtls/wolfssl.c. Fix this so to avoid
any surprise failures when using curl with hardknott.

Also fix the CVE designation in the patch descriptions for CVEs
CVE-2021-22890 and CVE-2021-22876 so that CVE checks run with bitbake
correctly detect that they are patched.

Signed-off-by: Trevor Gamblin <trevor.gamblin@windriver.com>
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>