fix clang build error · Pull Request !33 · src-openEuler/gnu-efi

clang build error:

```
[    3s] clang -I/home/abuild/rpmbuild/BUILD/gnu-efi-3.0.17//lib -I/home/abuild/rpmbuild/BUILD/gnu-efi-3.0.17//lib/../inc -I/home/abuild/rpmbuild/BUILD/gnu-efi-3.0.17//lib/../inc/x86_64 -I/home/abuild/rpmbuild/BUILD/gnu-efi-3.0.17//lib/../inc/protocol -O2  -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS --config /usr/lib/rpm/generic-hardened-clang.cfg -fstack-protector-strong -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection   -Wno-error=pragmas -mno-red-zone -mno-avx -fPIE  -g -O2 -Wall -Wextra -Wno-pointer-sign -Werror -funsigned-char -fshort-wchar -fno-strict-aliasing -ffreestanding -fno-stack-protector -fno-stack-check -fno-stack-check  -Wno-error=pragmas -mno-red-zone -mno-avx -fPIE  -g -O2 -Wall -Wextra -Wno-pointer-sign -Werror -funsigned-char -fshort-wchar -fno-strict-aliasing -ffreestanding -fno-stack-protector -fno-stack-check -fno-stack-check  -DCONFIG_x86_64 -DGNU_EFI_USE_MS_ABI -maccumulate-outgoing-args --std=c11 -c /home/abuild/rpmbuild/BUILD/gnu-efi-3.0.17//lib/boxdraw.c -o boxdraw.o
[    3s] clang-15: error: unknown argument: '-maccumulate-outgoing-args'
```

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