build(changelog): add new scope for Intel platform

Add new scope for Intel platform.

Signed-off-by: Sieu Mun Tang <sieu.mun.tang@intel.com>
Change-Id: I1fa7f5e0e5567825615dd0275b204b82fe8c2337
diff --git a/changelog.yaml b/changelog.yaml
index 9a4a8a7..0d6d421 100644
--- a/changelog.yaml
+++ b/changelog.yaml
@@ -185,6 +185,13 @@
                 deprecated:
                   - plat/tc0
 
+      - title: Intel
+        scope: intel
+
+        subsections:
+          - title: SoC
+            scope: soc
+
       - title: Marvell
         scope: marvell