manifest: Update picolibc to 1.8.9-2

Previously, Zephyr used a forked version of picolibc which added a patch to
disable LTO support (82d62ed1). Since an improved version of this patch has
been accepted into the the main branch in e09e6935, the forked version of
picolibc is no longer required.

Additionally, the 1.8.9 release series adds support for the OpenRISC (or1k)
architecture.

Signed-off-by: Joel Holdsworth <[email protected]>

Author: jhol

west.yml

@@ -23,6 +23,8 @@ manifest:
       url-base: https://github.com/zephyrproject-rtos
     - name: babblesim
       url-base: https://github.com/BabbleSim
+    - name: picolibc
+      url-base: https://github.com/picolibc
 
   group-filter: [-babblesim, -optional]
 
@@ -335,8 +337,9 @@ manifest:
       groups:
         - debug
     - name: picolibc
+      remote: picolibc
       path: modules/lib/picolibc
-      revision: 82d62ed1ac55b4e34a12d0390aced2dc9af13fc9
+      revision: 4380f9ae363db5ea4b88c9f339d3faaf1a6b4030
     - name: segger
       revision: cf56b1d9c80f81a26e2ac5727c9cf177116a4692
       path: modules/debug/segger