manifest: Update sdk-zephyr with STM performance test

tests: boards: nrf: coresight_stm: Add performance test for STM
zephyrproject-rtos/zephyr#79000
nrfconnect/sdk-zephyr#2097

Signed-off-by: Sebastian Głąb <[email protected]>

Author: nordic-segl

west.yml

@@ -69,7 +69,7 @@ manifest:
     # https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/guides/modules.html
     - name: zephyr
       repo-path: sdk-zephyr
-      revision: 36a1e64bc8414029324cb4e8a4828c13c170f3fc
+      revision: 8834ca9820f9fe968f2d38de598cd3f691759473
       import:
         # In addition to the zephyr repository itself, NCS also
         # imports the contents of zephyr/west.yml at the above