utils/spidev_test: side-step build-system woes

The spidev_test is build in phase2 even though it should be disabled.
My best guess is that we hit the same issue that I had with nu801.
The build-system thinks it's a tool that is necessary for
building the kernel.

In this case, the same fix (adding a dependency on the presence of
the module) could work in this case as well?

Fixes: bdaaf66 ("utils/spidev_test: build package directly from Linux")
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>

package/utils/spidev_test/Makefile

@@ -19,7 +19,7 @@ include $(INCLUDE_DIR)/package.mk
 define Package/spidev-test
   SECTION:=utils
   CATEGORY:=Utilities
-  DEPENDS:=+kmod-spi-dev @!IN_SDK
+  DEPENDS:=+PACKAGE_kmod-spi-dev:kmod-spi-dev @!IN_SDK
   TITLE:=SPI testing utility
   VERSION:=$(LINUX_VERSION)-$(PKG_RELEASE)
   URL:=http://www.kernel.org