mbedtls: remove stray uses of MBEDTLS_ZEPHYR_ENTROPY

This commit replaces stray uses of MBEDTLS_ZEPHYR_ENTROPY with
MBEDTLS_ENTROPY_POLL_ZEPHYR

(cherry picked from commit f29377a)

Original-Signed-off-by: Jilay Pandya <jilay.pandya@zeiss.com>
GitOrigin-RevId: f29377a
Cr-Build-Id: 8738638626547930177
Cr-Build-Url: https://cr-buildbucket.appspot.com/build/8738638626547930177
Copybot-Job-Name: zephyr-main-copybot-downstream
Change-Id: I69382debd0ac88060936f6140b72008b05ce1b42
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/zephyr/+/5810537
Tested-by: ChromeOS Prod (Robot) <chromeos-ci-prod@chromeos-bot.iam.gserviceaccount.com>
Tested-by: Ting Shen <phoenixshen@chromium.org>
Reviewed-by: Ting Shen <phoenixshen@chromium.org>
Commit-Queue: Ting Shen <phoenixshen@chromium.org>

samples/net/wifi/boards/rd_rw612_bga.conf

@@ -87,7 +87,7 @@ CONFIG_MBEDTLS_USER_CONFIG_FILE="wpa_supp_els_pkc_mbedtls_config.h"
 CONFIG_ENTROPY_GENERATOR=y
 CONFIG_MBEDTLS_PSA_CRYPTO_C=y
 CONFIG_MBEDTLS_ENTROPY_C=y
-CONFIG_MBEDTLS_ZEPHYR_ENTROPY=y
+CONFIG_MBEDTLS_ENTROPY_POLL_ZEPHYR=y
 CONFIG_MBEDTLS_SSL_MAX_CONTENT_LEN=8192
 
 # power management