disk/part.c: Make features optional
If we don't want to build support for any partition types we can now
add #undef CONFIG_PARTITIONS in a board config file to keep this from
being compiled in. Otherwise boards assume this is compiled in by
default
Signed-off-by: Matthew McClintock <msm@freescale.com>
diff --git a/include/config_defaults.h b/include/config_defaults.h
index 0337163..d023c63 100644
--- a/include/config_defaults.h
+++ b/include/config_defaults.h
@@ -16,5 +16,6 @@
#define CONFIG_GZIP 1
#define CONFIG_ZLIB 1
+#define CONFIG_PARTITIONS 1
#endif