Replace #ifdefs for sc520 systems by run time probing

Fixes #109

Corresponding to flashrom svn r355 and coreboot v2 svn r3790.

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Signed-off-by: Peter Stuge <peter@stuge.se>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
diff --git a/Makefile b/Makefile
index c79d402..95adb88 100644
--- a/Makefile
+++ b/Makefile
@@ -11,7 +11,7 @@
 INSTALL = /usr/bin/install
 PREFIX  = /usr/local
 #CFLAGS  = -O2 -g -Wall -Werror
-CFLAGS  = -Os -Wall -Werror # -DTS5300
+CFLAGS  = -Os -Wall -Werror
 OS_ARCH	= $(shell uname)
 ifeq ($(OS_ARCH), SunOS)
 LDFLAGS = -lpci -lz