xdp-tools: disable stack protector for BPF programs

When building xdp-tools with CONFIG_USE_LLVM_HOST=y, on a host that
enabled stack protector by default in Clang, compilation fails with the
following error:

    CLANG    xdp-dispatcher.o
clang-16: error: ignoring '-fstack-protector-strong' option as it is not currently supported for target 'bpfeb' [-Werror,-Woption-ignored]

Add -fno-stack-protector to BPF_CFLAGS to fix this.

Signed-off-by: Stijn Tintel <[email protected]>

package/network/utils/xdp-tools/Makefile

@@ -94,7 +94,7 @@ MAKE_VARS += \
 
 define Build/Configure
 	$(call Build/Configure/Default)
-	echo "BPF_CFLAGS += -I$(BPF_HEADERS_DIR)/tools/lib" >> $(PKG_BUILD_DIR)/config.mk
+	echo "BPF_CFLAGS += -I$(BPF_HEADERS_DIR)/tools/lib -fno-stack-protector" >> $(PKG_BUILD_DIR)/config.mk
 endef
 
 define Build/InstallDev