Add missing ld.lld wrapper needed for shared objects linking

sdk/bpf/llvm-docker/bin/ld.lld

@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+set -e
+PROGRAM=$(basename "$0")
+SDKROOT="$(cd "$(dirname "$0")"/../..; pwd -P)"
+[[ -z $V ]] || set -x
+exec docker run \
+  --workdir "$PWD" \
+  --volume "$PWD:$PWD" \
+  --volume "$SDKROOT:$SDKROOT" \
+  --rm solanalabs/llvm \
+  "$PROGRAM" "$@"

sdk/bpf/llvm-docker/generate.sh

@@ -14,6 +14,6 @@ exec docker run \
   "$PROGRAM" "$@"
 EOM
 
-for program in clang clang++ llc llvm-objdump; do
+for program in clang clang++ llc ld.lld llvm-objdump; do
   echo "$SCRIPT" > bin/$program
 done