feat(tsp): increase stack size for tsp

TSP testcases for EL3 SPMC have higher stack usage.

Change-Id: Ib5bfdccc6d0f65174e257f3b0e8b41bcd3c704a6
Signed-off-by: Shruti Gupta <shruti.gupta@arm.com>
diff --git a/changelog.yaml b/changelog.yaml
index c4028c4..04569f0 100644
--- a/changelog.yaml
+++ b/changelog.yaml
@@ -546,6 +546,13 @@
       - title: BL31
         scope: bl31
 
+      - title: BL32
+        scope: bl32
+
+        subsections:
+          - title: TSP
+            scope: tsp
+
   - title: Services
     scope: services