zephyr: Set thread name during thread creation
zephyr: Set thread name during thread creation

Set the thread name during thread creation instead of waiting until the
thread is started.

BUG=none
BRANCH=none
TEST=zmake testall
TEST=On volteer with CONFIG_THREAD_NAME and CONFIG_KERNEL_SHELL enabled,
verify thread names using "kernel threads"

Change-Id: Iaea51e7aaa7a238d0a099d857743ab0b61e855f8
Signed-off-by: Keith Short <f6d578f97033c25f1206cb57d52f358974c82954@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3418121
Reviewed-by: Jack Rosenthal <d3f605bef1867f59845d4ce6e4f83b8dc9e4e0ae@chromium.org>
Commit-Queue: Jack Rosenthal <d3f605bef1867f59845d4ce6e4f83b8dc9e4e0ae@chromium.org>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec