Fix fbcode linker error with `make shared_lib` (#8742)

Summary:
Need proper linker path for linking shared library

Pull Request resolved: https://github.com/facebook/rocksdb/pull/8742

Test Plan: `make shared_lib` on Facebook machine

Reviewed By: jay-zhuang

Differential Revision: D30709012

Pulled By: pdillinger

fbshipit-source-id: 6d17e281204c359aced85e18212e59758cec3313

build_tools/fbcode_config_platform009.sh

@@ -151,7 +151,6 @@ CFLAGS+=" -DROCKSDB_PLATFORM_POSIX -DROCKSDB_LIB_IO_POSIX -DROCKSDB_FALLOCATE_PR
 CXXFLAGS+=" $CFLAGS"
 
 EXEC_LDFLAGS=" $SNAPPY_LIBS $ZLIB_LIBS $BZIP_LIBS $LZ4_LIBS $ZSTD_LIBS $GFLAGS_LIBS $NUMA_LIB $TBB_LIBS $LIBURING_LIBS"
-EXEC_LDFLAGS+=" -B$BINUTILS"
 EXEC_LDFLAGS+=" -Wl,--dynamic-linker,/usr/local/fbcode/platform009/lib/ld.so"
 EXEC_LDFLAGS+=" $LIBUNWIND"
 EXEC_LDFLAGS+=" -Wl,-rpath=/usr/local/fbcode/platform009/lib"
@@ -160,6 +159,7 @@ EXEC_LDFLAGS+=" -Wl,-rpath=$GCC_BASE/lib64"
 EXEC_LDFLAGS+=" -ldl"
 
 PLATFORM_LDFLAGS="$LIBGCC_LIBS $GLIBC_LIBS $STDLIBS -lgcc -lstdc++"
+PLATFORM_LDFLAGS+=" -B$BINUTILS"
 
 EXEC_LDFLAGS_SHARED="$SNAPPY_LIBS $ZLIB_LIBS $BZIP_LIBS $LZ4_LIBS $ZSTD_LIBS $GFLAGS_LIBS $TBB_LIBS $LIBURING_LIBS"