[host] Move HAL bodies into components/host/hal.cpp + inline trivial dispatches (#16115)

esphome/core/hal/hal_host.h

@@ -3,6 +3,7 @@
 #ifdef USE_HOST
 
 #include <cstdint>
+#include <sched.h>
 
 #define IRAM_ATTR
 #define PROGMEM
@@ -13,17 +14,18 @@ namespace esphome {
 /// Host has no ISR concept.
 __attribute__((always_inline)) inline bool in_isr_context() { return false; }
 
-void yield();
+__attribute__((always_inline)) inline void yield() { ::sched_yield(); }
+
 void delay(uint32_t ms);
 uint32_t micros();
 uint32_t millis();
 uint64_t millis_64();
-
 void delayMicroseconds(uint32_t us);  // NOLINT(readability-identifier-naming)
-void arch_feed_wdt();
 uint32_t arch_get_cpu_cycle_count();
-void arch_init();
-uint32_t arch_get_cpu_freq_hz();
+
+__attribute__((always_inline)) inline void arch_init() {}
+__attribute__((always_inline)) inline void arch_feed_wdt() {}
+__attribute__((always_inline)) inline uint32_t arch_get_cpu_freq_hz() { return 1000000000U; }
 
 }  // namespace esphome