package/tcpdump: bump to version 4.99.0

package/tcpdump: bump to version 4.99.0

Drop upstream security patch.

Rename --with-system-libpcap to --disable-local-libpcap following
upstream change.

The configure scripts uses pkg-config to find libpcap, add host-pkgconf
dependency.

pkg-config handles static build for us. Remove explicit static build
handling.

Use https for SITE to save redirect.

Update license file hash due to whitespace changes.

Format hashes with two space delimiters.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>