Add vendor/st repository for NFC bringup

Issue: FP4-INT#20
Change-Id: I14348ed93414455ffed96fe06872b9cc7daf32a2
diff --git a/snippets/fairphone.xml b/snippets/fairphone.xml
index 4907532..ef996ed 100644
--- a/snippets/fairphone.xml
+++ b/snippets/fairphone.xml
@@ -10,4 +10,6 @@
   <project path="vendor/fairphone/fp4" name="vendor/fairphone/fp4" groups="fairphone" />
   <project path="vendor/fairphone/fp4-sibon" name="vendor/fairphone/fp4-sibon" groups="fairphone" />
   <project path="vendor/fairphone/media" name="vendor/fairphone/media" groups="fairphone" />
+
+  <project path="vendor/st" name="platform/vendor/st" groups="fairphone" />
 </manifest>