manifest: update mbedtls cleaning up the zephyr specific files

Update the mbedtls module pointer, effectively
cleaning up the zephyr files from the module
repository and moving them to zephyr module
directory.

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: 53044168b43f06ec5654b906a2cdd260bf477edd
+      revision: pull/25/head
       path: modules/crypto/mbedtls
     - name: mcuboot
       revision: 3ad36f82d5884c9792d6470b1e7f55011a03c4f1