code_owners: add peripherals to the owner of bootloader_flash
/components/app_update/ @esp-idf-codeowners/system @esp-idf-codeowners/app-utilities
/components/asio/ @esp-idf-codeowners/network
/components/bootloader*/ @esp-idf-codeowners/system @esp-idf-codeowners/security
+/components/bootloader_support/bootloader_flash/ @esp-idf-codeowners/peripherals
/components/bt/ @esp-idf-codeowners/bluetooth
/components/cmock/ @esp-idf-codeowners/system
/components/coap/ @esp-idf-codeowners/app-utilities
