[Backport v1.1-branch] manifest: update zephyr to include zephyr_library_app_memory#1458

thst-nordic merged 1 commit intov1.1-branchnrfconnect/sdk-nrf:v1.1-branchfrom

backport-1409-to-v1.1-branchnrfconnect/sdk-nrf:backport-1409-to-v1.1-branchCopy head branch name to clipboard