fs/erofs: add erofs filesystem support

This patch mainly deals with uncompressed files.

Signed-off-by: Huang Jianan <jnhuang95@gmail.com>
diff --git a/fs/erofs/Kconfig b/fs/erofs/Kconfig
new file mode 100644
index 0000000..f4b2d51
--- /dev/null
+++ b/fs/erofs/Kconfig
@@ -0,0 +1,12 @@
+config FS_EROFS
+	bool "Enable EROFS filesystem support"
+	help
+	  This provides support for reading images from EROFS filesystem.
+	  EROFS (Enhanced Read-Only File System) is a lightweight read-only
+	  file system for scenarios which need high-performance read-only
+	  requirements.
+
+	  It also provides fixed-sized output compression support, which
+	  improves storage density, keeps relatively higher compression
+	  ratios, which is more useful to achieve high performance for
+	  embedded devices with limited memory.