package/swupdate: bump to version 2019.11

package/swupdate: bump to version 2019.11

Add support for:
 * mbedTLS as SSL choice
 * zstd as compression option
 * libgpiod to support microcontroller firmware update
 * efibootmgr to support EFI Boot Guard
 * libwebsockets and liburiparser to support SWU forwarder

Also:
 * drop upstream patches
 * drop CONFIG_GUNZIP. Setting it because Buxybox provides a binary named gunzip is wrong.
   CONFIG_GUNZIP should only be set if zlib is provided, which Buxybox'
   gunzip does not.

Regenerated the .config file by doing:

```
make swupdate-menuconfig
make swupdate-update-config
```
.. and removing the paths for the build options manually.

Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>