build: fix building llvm tarball

Add missing select NEED_BPF_TOOLCHAIN in order to ensure that the toolchain
actually gets built.

Fixes: https://github.com/openwrt/openwrt/issues/17926
Signed-off-by: Felix Fietkau <nbd@nbd.name>
(cherry picked from commit 04570f5ee2dfe6609c22d2d21678b14cd3314309)

diff --git a/target/sdk/Config.in b/target/sdk/Config.in
index 1984e242e721b5165490faa55596d0606bf93973..9fee5abdc36c519fd631090aa04bb4e293b44eb4 100644 (file)
--- a/target/sdk/Config.in
+++ b/target/sdk/Config.in
@@ -10,6 +10,7 @@ config SDK
 config SDK_LLVM_BPF
        bool "Build the LLVM-BPF toolchain tarball"
        depends on BPF_TOOLCHAIN_BUILD_LLVM
+       select NEED_BPF_TOOLCHAIN
        default BUILDBOT
        help
          This is a tarball of the precompiled LLVM toolchain suitable