spec: Install rpc-server and rpc backend

No point to make a separate rpc backend package since this is a virtual
thing.

Link: https://github.com/ggml-org/llama.cpp/tree/master/tools/rpc
Signed-off-by: Vitaly Chikunov <vt@altlinux.org>

.gear/llama.cpp.spec

@@ -163,6 +163,7 @@ export NVCC_PREPEND_FLAGS=-ccbin=g++-12
 	-DLLAMA_CURL=ON \
 	-DGGML_BACKEND_DL=ON \
 	-DGGML_CPU=ON \
+	-DGGML_RPC=ON \
 %ifarch x86_64
 	-DGGML_CPU_ALL_VARIANTS=ON \
 %endif
@@ -196,6 +197,7 @@ rm %buildroot%_bindir/test-*
 install -Dpm644 llama.bash %buildroot%_datadir/bash-completion/completions/llama-cli
 printf '%%s\n' llama-server llama-simple llama-run llama-mtmd-cli |
 	xargs -ti ln -s llama-cli %buildroot%_datadir/bash-completion/completions/{}
+install -Dp %_cmake__builddir/bin/rpc-server %buildroot%_bindir/llama-rpc-server
 
 %check
 # Local path are more useful for debugging becasue they are not stripped by default.
@@ -235,6 +237,7 @@ llama-cli -m %_datadir/tinyllamas/stories260K.gguf -p "Once upon a time" -s 55 -
 %_datadir/%name
 %dir %_libexecdir/llama
 %_libexecdir/llama/libggml-cpu*.so
+%_libexecdir/llama/libggml-rpc.so
 %_datadir/bash-completion/completions/llama-*
 
 %if_with cuda