Add linux/types.h to cryptfs.h

This commit adds <linux/types.h> to cryptfs.h because cryptfs.h uses
`__le16` and `__le32` which are defined in <linux/types.h>.

The absence of <linux/types.h> will become an error after we sort the
headers in the upcoming commits.

Test: cd system/vold && mma
Change-Id: I9930105ee86f80a29295b59596b21335c68a8e23
1 file changed