* Updating i2pd package to 2.40.0
* Rewrite Makefile
* Remove usage of PKG_INSTALL (package's make install)
* Rewrite init.rc configuration and script
* Remove '--service' option from init, which only sets datadir to /var/lib/i2pd
* Use '--datadir' option in init, otherwise datadir changing via uci is not works
* Update patch for i2pd.conf

Signed-off-by: R4SAS I2P <r4sas@i2pmail.org>

i2pd reports:
missing/unreadable config file: /etc/i2pd/i2pd.conf

Signed-off-by: Dirk Neukirchen <plntyk.lede@plntyk.name>

its included via rc.common, see
https://openwrt.org/docs/guide-developer/config-scripting

Signed-off-by: Dirk Neukirchen <plntyk.lede@plntyk.name>

Signed-off-by: David Yang <mmyangfl@gmail.com>

Ran init script through shellcheck. Simplified several statements.

Replaced INSTALL_CONF with INSTALL_DATA. i2pd runs as non-root and so the
conf file must be accessible.

Fixed: https://github.com/openwrt/packages/issues/10977

Signed-off-by: Rosen Penev <rosenp@gmail.com>

Signed-off-by: David Yang <mmyangfl@gmail.com>

Signed-off-by: David Yang <mmyangfl@gmail.com>

Signed-off-by: David Yang <mmyangfl@gmail.com>

Original author: dartraiden <wowemuh@gmail.com>

Signed-off-by: David Yang <mmyangfl@gmail.com>

Signed-off-by: David Yang <mmyangfl@gmail.com>

Signed-off-by: David Yang <mmyangfl@gmail.com>