Modified payload_aes_busy to include some sleep statements

c8_payloads/include/brfunc_common.h

@@ -27,6 +27,7 @@ typedef int (*BOOTROM_FUNC)();
 #define ADDR_CLOCK_GATE                     0x100009d4c
 #define ADDR_SYSTEM_TIME                    0x10000B0E0
 #define ADDR_TIME_HAS_ELAPSED               0x10000B04F
+#define ADDR_TASK_SLEEP                     0x10000ADF0
 
 #else
 #error "Unsupported checkm8 platform"

c8_payloads/include/brfunc_timing.h

@@ -7,4 +7,10 @@
 #define SYSTEM_TIME                 ((BOOTROM_FUNC) ADDR_SYSTEM_TIME)
 #define TIME_HAS_ELAPSED            ((BOOTROM_FUNC) ADDR_TIME_HAS_ELAPSED)
 
+PAYLOAD_SECTION
+void task_sleep(unsigned int usec)
+{
+    ((BOOTROM_FUNC) ADDR_TASK_SLEEP)(usec);
+}
+
 #endif //CHECKM8_TOOL_BRFUNC_TIMING_H