Bump to the latest 1.22 version which allows dropping our only patch.
Changelog:
Version 1.22
* The CMake-based build system now implements a workaround for gcc being paired
with a too-old binutils version. This can prevent build errors.
Version 1.21
* Fixed build error on x86 with gcc 8.1 and gcc 8.2.
* Fixed build error on x86 when gcc 11 is paired with a binutils version that
doesn't support AVX-VNNI, e.g. as it is on RHEL 9.
* Fixed build error on arm64 with gcc 6.
* Fixed build error on arm64 with gcc 13.1 and later with some -mcpu options.
* Enabled detection of dotprod support in Windows ARM64 builds.
Link: https://github.com/openwrt/openwrt/pull/16617
Signed-off-by: Robert Marko <robimarko@gmail.com>
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