connman: fix CVE-2022-23098

An issue was discovered in the DNS proxy in Connman through 1.40.
The TCP server reply implementation has an infinite loop if no
data is received.

Backport patch from:
https://git.kernel.org/pub/scm/network/connman/connman.git/commit/?id=d8708b85c1e8fe25af7803e8a20cf20e7201d8a4



CVE: CVE-2022-23098

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