Bugfix: ztex: Include --scan-serial option even for ztex-only builds, so it can be used to disable autodetect if needed

cgminer.c

@@ -54,11 +54,9 @@
 	#include <sys/wait.h>
 #endif
 
-#if defined(USE_BITFORCE) || defined(USE_ICARUS) || defined(USE_MODMINER)
+#if defined(USE_BITFORCE) || defined(USE_ICARUS) || defined(USE_MODMINER) || defined(USE_ZTEX)
 #	define USE_FPGA
 #	define USE_FPGA_SERIAL
-#elif defined(USE_ZTEX)
-#	define USE_FPGA
 #endif
 
 enum workio_commands {