manifest: mbedtls: fix west pointer to module SHA

Fix manifest pointer for mbedtls to the main branch tip,
instead of the PR head.

Signed-off-by: Ioannis Glaropoulos <[email protected]>

Author: ioannisg

west.yml

@@ -88,7 +88,7 @@ manifest:
       revision: 31acbaa36e9e74ab88ac81e3d21e7f1d00a71136
       path: modules/lib/gui/lvgl
     - name: mbedtls
-      revision: pull/25/head
+      revision: 711fe7fdff90d995b7bdc2123ed3dd8b0399d64e
       path: modules/crypto/mbedtls
     - name: mcuboot
       revision: 3ad36f82d5884c9792d6470b1e7f55011a03c4f1