[source] tools: build b43 tools if the SDK was enabled

[LEDE Commits]

nbd pushed a commit to source.git, branch master:
https://git.lede-project.org/?p=source.git;a=commitdiff;h=01fc738b46c0df35b41806c99f32d132743dbe59

commit 01fc738b46c0df35b41806c99f32d132743dbe59
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Thu Jul 7 10:52:51 2016 +0200

    tools: build b43 tools if the SDK was enabled
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
 tools/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/Makefile b/tools/Makefile
index 179306d..4fb583e 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -23,7 +23,7 @@ ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
     endif
   endif
 endif
-ifneq ($(CONFIG_PACKAGE_kmod-b43)$(CONFIG_PACKAGE_b43legacy-firmware)$(CONFIG_BRCMSMAC_USE_FW_FROM_WL),)
+ifneq ($(CONFIG_SDK)$(CONFIG_PACKAGE_kmod-b43)$(CONFIG_PACKAGE_b43legacy-firmware)$(CONFIG_BRCMSMAC_USE_FW_FROM_WL),)
   BUILD_B43_TOOLS = y
 endif