x86: config: Enable LZO for coreboot, remove zlib, gzip

We don't use zlib and gzip but do use lzo, so enable this.
Signed-off-by: NSimon Glass <sjg@chromium.org>

include/configs/coreboot.h

@@ -57,6 +57,10 @@
 #define CONFIG_BOOTSTAGE_STASH_SIZE	0x7fc
 #define CONFIG_BOOTSTAGE_USER_COUNT	60
 
+#define CONFIG_LZO
+#undef CONFIG_ZLIB
+#undef CONFIG_GZIP
+
 /*-----------------------------------------------------------------------
  * Watchdog Configuration
  */