intel-microcode: remove dependency on iucode-tool

It is not necessary to have iucode-tool present on target system to have
functional intel-microcode package. The build time dependency is kept.

Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>

package/firmware/intel-microcode/Makefile

@@ -30,7 +30,7 @@ define Package/intel-microcode
   SECTION:=firmware
   CATEGORY:=Firmware
   URL:=$(PKG_SOURCE_URL)
-  DEPENDS:=@TARGET_x86 +iucode-tool
+  DEPENDS:=@TARGET_x86
   TITLE:=Intel x86 CPU microcode
 endef