Included sdcardfs source code for kernel 3.0

Only included the source code as is for kernel 3.0. Following patches
take care of porting this file system to version 3.10.

Change-Id: I09e76db77cd98a059053ba5b6fd88572a4b75b5b
Signed-off-by: Daniel Campello <campello@google.com>
Signed-off-by: Kevin F. Haggerty <haggertk@lineageos.org>
diff --git a/fs/Kconfig b/fs/Kconfig
index 3d74e48..4599f08 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -199,6 +199,7 @@
 source "fs/adfs/Kconfig"
 source "fs/affs/Kconfig"
 source "fs/ecryptfs/Kconfig"
+source "fs/sdcardfs/Kconfig"
 source "fs/hfs/Kconfig"
 source "fs/hfsplus/Kconfig"
 source "fs/befs/Kconfig"