CY8CKIT_062_WIFI_BT_PSA: mention tools/psa/release.py in README

Author: hennadiykytsun

targets/TARGET_Cypress/TARGET_PSOC6/TARGET_CY8CKIT_062_WIFI_BT_PSA/prebuilt/README.md

@@ -6,8 +6,7 @@ Build by mbed-cli using GNU Arm Embedded - version 6.3.1
 These images were compiled by the following command:
 
 ```
-mbed compile -m CY8CKIT_062_WIFI_BT_M0_PSA -t GCC_ARM --profile release -N psa_release_1.0
-mbed test --compile -m CY8CKIT_062_WIFI_BT_M0_PSA -t GCC_ARM --profile debug -n *psa-spm*,*psa-crypto_access_control
+python tools/psa/release.py -m CY8CKIT_062_WIFI_BT_M0_PSA
 ```
 
 To update the prebuilt binaries run the previous commands.