libwolfsslcpu-crypto: conflicts with libwolfssl

[McGiverGim]

Maintainer: @cotequeiroz
Environment: IPQ807x, AX3600, snapshot

Description:
The package libwolfsslcpu-crypto is included by default in the list of packages for my device (Xiaomi AX3600). OpenWrt builders are building it without problem, but if fails in other circunstances:

• While trying to use Attended Sysupgrade. Validating the packages it detects a conflict and fails.
• While trying to use Firmware Selector. Validating the packages it detects a conflict and fails.
• If I remove the package from any of the two firmware builders, the firmware is built, but if I try to install it later with opkg it throws an error because the conflict. I can force the installation and all seems to work, but I suppose is not the way to do it.

This is a sample of the error using Firmware Selector:

[libwolfsslcpu-crypto] Checking for Arm v8-A Cryptographic Extension support: ...[offline]... OK
[libwolfsslcpu-crypto] Checking for Arm v8-A Cryptographic Extension support: ...[offline]... OK
Collected errors:
 * check_data_file_clashes: Package libwolfsslcpu-crypto5.5.4.e624513f wants to install file /home/aparcar/asu/worker1/cache/SNAPSHOT/ipq807x/generic/build_dir/target-aarch64_cortex-a53_musl/root-ipq807x/usr/lib/libwolfssl.so.5.5.4.e624513f
	But that file is already provided by package  * libwolfssl5.5.4.e624513f
 * opkg_install_cmd: Cannot install package libwolfsslcpu-crypto.
 * check_data_file_clashes: Package libwolfsslcpu-crypto5.5.4.e624513f wants to install file /home/aparcar/asu/worker1/cache/SNAPSHOT/ipq807x/generic/build_dir/target-aarch64_cortex-a53_musl/root-ipq807x/usr/lib/libwolfssl.so.5.5.4.e624513f
	But that file is already provided by package  * libwolfssl5.5.4.e624513f
 * opkg_install_cmd: Cannot install package libwolfsslcpu-crypto.
make[2]: *** [Makefile:185: package_install] Error 255
make[1]: *** [Makefile:150: _call_manifest] Error 2
make: *** [Makefile:269: manifest] Error 2

Is that an expected behaviour?

EDIT: to give more information, it seems the conflict is exactly with libustream-wolfssl. Both packages are by default in the build. If I remove any of them, the build works, but I don't know if is safe to remove the libustream-wolfssl.

[robimarko]

To track it further, it seems that @cotequeiroz warned us about this a while ago but I was unaware in:
openwrt/openwrt#10765 (comment)

He even sent an OPKG patch series that solves the issue: https://patchwork.ozlabs.org/project/openwrt/cover/20221017170358.3628154-1-cotequeiroz@gmail.com/