[zephyr] Roll 4 commits

3efce4c93938ebd Revert "tests: logging: log_api: Add cast to char
73a940e3b7c60af lib: os/cbprintf: make char[] work in C++ and tagg
2ddf2fa8b868101 tests: i2c_target_api: Fix project name
5921eccf1b3aa03 test: tests/crypto/tinycrypt timeout

https://pigweed.googlesource.com/third_party/github/zephyrproject-rtos/zephyr
zephyr Rolled-Commits: dba3d31dddac1c6..3efce4c93938ebd
Roller-URL: https://ci.chromium.org/b/8809956616363301329
Cq-Cl-Tag: roller-builder:zephyr-zephyr-roller
Cq-Cl-Tag: roller-bid:8809956616363301329
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I0d3751c127343fd6bc24764ade7f99562577dfbc
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/zephyr-integration/+/100546
Bot-Commit: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
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diff --git a/zephyr b/zephyr
index dba3d31..3efce4c 160000
--- a/zephyr
+++ b/zephyr
@@ -1 +1 @@
-Subproject commit dba3d31dddac1c651b0ad992657b3c649c9d130a
+Subproject commit 3efce4c93938ebdd7d5d9b3ffdcd2b096490cea5