Changelog: Brought forward changelog changes from #4716308

Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
diff --git a/ChangeLog.d/9964.txt b/ChangeLog.d/9964.txt
index ca0cc4b..0b28ea9 100644
--- a/ChangeLog.d/9964.txt
+++ b/ChangeLog.d/9964.txt
@@ -1,5 +1,5 @@
 Removals
-    * Removal of the following sample programs:
+    * Sample programs for the legacy crypto API have been removed.
           pkey/rsa_genkey.c
           pkey/pk_decrypt.c
           pkey/dh_genprime.c
@@ -23,3 +23,4 @@
           hash/hello.c
           hash/generic_sum.c
           cipher/cipher_aead_demo.c
+
diff --git a/ChangeLog.d/error-unification.txt b/ChangeLog.d/error-unification.txt
index bcf5ba1..1f8e8af 100644
--- a/ChangeLog.d/error-unification.txt
+++ b/ChangeLog.d/error-unification.txt
@@ -7,5 +7,6 @@
      between -32767 and -1 as before.
 
 Removals
-   * Remove mbedtls_low_level_sterr() and mbedtls_high_level_strerr(),
+   * Remove mbedtls_low_level_strerr() and mbedtls_high_level_strerr(),
      since these concepts no longer exists. There is just mbedtls_strerror().
+
diff --git a/ChangeLog.d/x509/9892.txt b/ChangeLog.d/x509/9892.txt
index 01d21b6..962bdad 100644
--- a/ChangeLog.d/x509/9892.txt
+++ b/ChangeLog.d/x509/9892.txt
@@ -1,4 +1,5 @@
 Removals
    * Remove deprecated mbedtls_x509write_crt_set_serial(). The function was
-     already deprecated and superseeded by
+     already deprecated and superseded by
      mbedtls_x509write_crt_set_serial_raw().
+