Increase KeyMint heap size by 4K

Bug: 260520522
Bug: 260347665
Bug: 258358961
Test: VtsAidlKeyMintTargetTest
Change-Id: I42790dcbf2ad5fcf0376a6b593f9ea6f413fd888
diff --git a/manifest.json b/manifest.json
index 3932beb..fcb913a 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,6 +1,6 @@
 {
     "uuid": "5f902ace-5e5c-4cd8-ae54-87b88c22ddaf",
-    "min_heap": 114688,
+    "min_heap": 118784,
     "min_stack": 32768,
     "start_ports": [
         {