esp_timer: don’t busy loop in esp_timer_impl_set_alarm
esp_timer: don’t busy loop in esp_timer_impl_set_alarm

Previously the loop in esp_timer_impl_set_alarm was necessary to catch
the case when timer count wraps around (goes from 2^32 - 1 to 0).
Since ALARM_OVERFLOW_VAL was reduced from 2^32 - 1 to 0xefffffff,
this is no longer necessary.

Fixes https://github.com/espressif/esp-idf/issues/1891

espressif/esp-idf,www220/esp-idf,www220/esp-idf,mashaoze/esp-idf,mashaoze/esp-idf,espressif/esp-idf,www220/esp-idf,armada-ai/esp-idf,espressif/esp-idf,mashaoze/esp-idf,mashaoze/esp-idf,www220/esp-idf,armada-ai/esp-idf,www220/esp-idf,espressif/esp-idf,armada-ai/esp-idf,armada-ai/esp-idf,mashaoze/esp-idf