FIH: Update FIH tool

TF-M has re-enabled fault injection hardening and the tool requires
to be updated with the latest TF-M version.

Signed-off-by: Jianliang Shen <jianliang.shen@arm.com>
Change-Id: I319f8dd38ef54e932976445b9cf66758d330075a
diff --git a/fih_test_tool/Readme.rst b/fih_test_tool/Readme.rst
index 81b3d34..646b0bf 100644
--- a/fih_test_tool/Readme.rst
+++ b/fih_test_tool/Readme.rst
@@ -31,8 +31,8 @@
       * For each of the fault tests specified:
          * Load the test_start state, so that a clean environment is present.
          * Perform the fault.
-         * Run through, evaluating any `critical memory` at every `critical
-            point breakpoint` and saving this to the test state.
+         * Run through, evaluating any `critical memory` at every
+            `critical point breakpoint` and saving this to the test state.
          * Detect any failure loop states, QEMU crashes, or the end breakpoint,
             and end the test.
          * Compare the execution state of the test with the "known good" state.
@@ -118,4 +118,4 @@
 
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-*Copyright (c) 2021, Arm Limited. All rights reserved.*
+*Copyright (c) 2021-2022, Arm Limited. All rights reserved.*