abiword: fix cross

This commit adds `perl` to `nativeBuildInputs` of abiword, to avoid
the following build failure:

```
abiword-aarch64-unknown-linux-gnu> checking for perl... no
abiword-aarch64-unknown-linux-gnu> configure: error: *** perl program not found
error: build of '/nix/store/v670j4pyqk5vy625gh7w0j2jla1wrz2s-abiword-aarch64-unknown-linux-gnu-3.0.5.drv' on 'ssh://root@192.168.22.102' failed: builder for '/nix/store/v670j4pyqk5vy625gh7w0j2jla1wrz2s-abiword-aarch64-unknown-linux-gnu-3.0.5.drv' failed with exit code 1
error: builder for '/nix/store/v670j4pyqk5vy625gh7w0j2jla1wrz2s-abiword-aarch64-unknown-linux-gnu-3.0.5.drv' failed with exit code 1;
       last 10 log lines:
       > checking if aarch64-unknown-linux-gnu-g++ -std=c++11 PIC flag -fPIC -DPIC works... yes
       > checking if aarch64-unknown-linux-gnu-g++ -std=c++11 static flag -static works... no
       > checking if aarch64-unknown-linux-gnu-g++ -std=c++11 supports -c -o file.o... yes
       > checking if aarch64-unknown-linux-gnu-g++ -std=c++11 supports -c -o file.o... (cached) yes
       > checking whether the aarch64-unknown-linux-gnu-g++ -std=c++11 linker (aarch64-unknown-linux-gnu-ld) supports shared libraries... yes
       > checking dynamic linker characteristics... (cached) GNU/Linux ld.so
       > checking how to hardcode library paths into programs... immediate
       > checking whether ln -s works... yes
       > checking for perl... no
       > configure: error: *** perl program not found
       For full logs, run 'nix log /nix/store/v670j4pyqk5vy625gh7w0j2jla1wrz2s-abiword-aarch64-unknown-linux-gnu-3.0.5.drv'.
```

0 files changed, 0 insertions, 0 deletions