package/efl: bump to version 1.23.2

package/efl: bump to version 1.23.2

- Remove upstream patch [1].
- Switch to meson build system.
- The cryptography backend is now mandatory, use openssl for the host
  and use openssl by default for the target if gnutls is not selected.
- Add host-giflib since the dependency can't be disabled anymore.
  (even by adding gif in HOST_EFL_EVAS_LOADERS_DISABLER).
- Disable explicitely meson build options that was not previously handled
  (avahi, emotion, ecore-imf-loarders...)
- Elput support is now enabled through drm meson option [2], remove
  BR2_PACKAGE_EFL_ELPUT.
- Update license file hash (csharp licensing information, cxx bindings
  licensing)
- Add COPYING.images and licenses/COPYING.ASL license file.
- The evas png loader is now mandatory [3] (even by adding png in
  EFL_EVAS_LOADERS_DISABLER).
- Same for the evas gif loader [4].
- Backport an upstream patch to fix the evas build with -Dwl=false.
- Update indentation of hash file (two spaces)

See:
https://www.enlightenment.org/news/efl-1.23.0
https://www.enlightenment.org/news/efl-1.23.1
https://www.enlightenment.org/news/efl-1.23.2

[1] https://git.enlightenment.org/core/efl.git/commit/?id=c46a8143916f0d3f66bbdffc7107c97c88df212d
[2] https://git.enlightenment.org/core/efl.git/tree/meson.build?h=v1.23.3#n297
[3] https://git.enlightenment.org/core/efl.git/tree/src/modules/evas/meson.build?h=v1.23.3#n2
[4] https://git.enlightenment.org/core/efl.git/tree/src/modules/evas/meson.build?h=v1.23.3#n4

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>