Fix MSVC arm64

[dg0yt]

From vcpkg port, fixes:

FAILED: freerdp3.dll freerdp3.lib 
cmd.exe /C "cd . && D:\downloads\tools\cmake-3.27.1-windows\cmake-3.27.1-windows-i386\bin\cmake.exe -E vs_link_dll --intdir=libfreerdp\CMakeFiles\freerdp.dir --rc=C:\PROGRA~2\WI3CF2~1\10\bin\100226~1.0\x64\rc.exe --mt=C:\PROGRA~2\WI3CF2~1\10\bin\100226~1.0\x64\mt.exe --manifests  -- C:\PROGRA~1\MICROS~1\2022\ENTERP~1\VC\Tools\MSVC\1438~1.331\bin\Hostx64\arm64\link.exe  @CMakeFiles\freerdp.rsp  /out:freerdp3.dll /implib:freerdp3.lib /pdb:freerdp3.pdb /dll /version:3.3 /machine:ARM64 /nologo    /debug /INCREMENTAL  /INCREMENTAL:NO /LTCG  && cd ."
LINK: command "C:\PROGRA~1\MICROS~1\2022\ENTERP~1\VC\Tools\MSVC\1438~1.331\bin\Hostx64\arm64\link.exe @CMakeFiles\freerdp.rsp /out:freerdp3.dll /implib:freerdp3.lib /pdb:freerdp3.pdb /dll /version:3.3 /machine:ARM64 /nologo /debug /INCREMENTAL /INCREMENTAL:NO /LTCG /MANIFEST:EMBED,ID=2" failed (exit code 1120) with the following output:
   Creating library freerdp3.lib and object freerdp3.exp


rfx_rlgr.c.obj : error LNK2001: unresolved external symbol __lzcnt


freerdp3.dll : fatal error LNK1120: 1 unresolved externals

[freerdp-bot]

Can one of the admins verify this patch?

[github-actions]

clang-tidy review says "All clean, LGTM! 👍"

[akallabeth]

LGTM

[akallabeth]

@freerdp-bot test please

[freerdp-bot]

Refer to this link for build results (access rights to CI server needed):
https://ci.freerdp.com//job/PullRequestTester/11635/