mbed_power_management - rename sleep --> mbed_sleep to avoid conflicts

Fixes conflicts w/ unistd.h and boost::ut

Author: ladislas

platform/include/platform/mbed_power_mgmt.h

@@ -192,7 +192,7 @@ void sleep_manager_sleep_auto(void);
  * Flash re-programming and the USB serial port will remain active, but the mbed program will no longer be
  * able to access the LocalFileSystem
  */
-static inline void sleep(void)
+static inline void mbed_sleep(void)
 {
 #if DEVICE_SLEEP
 #if (MBED_CONF_RTOS_PRESENT == 0) || (DEVICE_SYSTICK_CLK_OFF_DURING_SLEEP == 0) || defined(MBED_TICKLESS)

platform/source/mbed_os_timer.cpp

@@ -170,7 +170,7 @@ void do_sleep_operation(OpT &op)
             // we go round to set the timer again.
             if (op.sleep_prepared()) {
                 // Enter HAL sleep (normal or deep)
-                sleep();
+                mbed_sleep();
             }
         }