Documentation: fix security related doc refs

Make security document refs valid.
Signed-off-by: Tom Saeger <tom.saeger@oracle.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Documentation/ABI/testing/evm

@@ -18,6 +18,6 @@ Description:
 		in the initramfs, which has already been measured as part
 		of the trusted boot.  For more information on creating and
 		loading existing trusted/encrypted keys, refer to:
-		Documentation/keys-trusted-encrypted.txt.  (A sample dracut
-		patch, which loads the trusted/encrypted key and enables
+		Documentation/security/keys/trusted-encrypted.rst.  (A sample
+		dracut patch, which loads the trusted/encrypted key and enables
 		EVM, is available from http://linux-ima.sourceforge.net/#EVM.)

Documentation/security/LSM.rst

@@ -5,7 +5,7 @@ Linux Security Module Development
 Based on https://lkml.org/lkml/2007/10/26/215,
 a new LSM is accepted into the kernel when its intent (a description of
 what it tries to protect against and in what cases one would expect to
-use it) has been appropriately documented in ``Documentation/security/LSM``.
+use it) has been appropriately documented in ``Documentation/security/LSM.rst``.
 This allows an LSM's code to be easily compared to its goals, and so
 that end users and distros can make a more informed decision about which
 LSMs suit their requirements.

Documentation/security/credentials.rst

@@ -196,7 +196,7 @@ The Linux kernel supports the following types of credentials:
      When a process accesses a key, if not already present, it will normally be
      cached on one of these keyrings for future accesses to find.
 
-     For more information on using keys, see Documentation/security/keys.txt.
+     For more information on using keys, see ``Documentation/security/keys/*``.
 
  5. LSM
 

Documentation/security/keys/request-key.rst

@@ -3,7 +3,7 @@ Key Request Service
 ===================
 
 The key request service is part of the key retention service (refer to
-Documentation/security/core.rst).  This document explains more fully how
+Documentation/security/keys/core.rst).  This document explains more fully how
 the requesting algorithm works.
 
 The process starts by either the kernel requesting a service by calling