wiseconnect: Rely on k_usleep()

There is a risk of conflict if an driver directly access to the
hardware resources. Here, the memory Controller directly access to the
Timer which belong to the Timer driver.

Fortunately, Zephyr provide a generic API. So it is not required to
directly access to the hardware.

Signed-off-by: Jérôme Pouiller <[email protected]>

Author: jerome-pouiller

wiseconnect/components/device/silabs/si91x/mcu/drivers/peripheral_drivers/src/rsi_qspi.c

@@ -28,6 +28,7 @@
 ******************************************************************************/
 
 // Include Files
+#include <zephyr/kernel.h>
 
 #include "rsi_ccp_user_config.h"
 
@@ -2647,13 +2648,7 @@ void qspi_spi_read(qspi_reg_t *qspi_reg,
  */
 void qspi_usleep(uint32_t delay)
 {
-  // Micro seconds delay
-  RSI_TIMERS_SetMatch(TIMERS, TIMER_0, delay);
-  // Start timer
-  RSI_TIMERS_TimerStart(TIMERS, TIMER_0);
-  // Wait for time out
-  while (!RSI_TIMERS_InterruptStatus(TIMERS, TIMER_0))
-    ;
+    k_usleep(delay);
 }
 
 #if defined(SLI_SI917) || defined(SLI_SI915)