ChangeLog: add change log for CCM/CCM* coupling removal

Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
diff --git a/ChangeLog.d/8482.txt b/ChangeLog.d/8482.txt
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+++ b/ChangeLog.d/8482.txt
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+Default behavior changes
+    * PSA_WANT_ALG_CCM and PSA_WANT_ALG_CCM_STAR_NO_TAG are no more synonyms and
+      they are now treated separately. This means that they should be
+      individually enabled in order to enable relative support; also the
+      corresponding MBEDTLS_PSA_ACCEL symbol should be defined in case
+      acceleration is required.