Implement ms timer and fix all timers

This will fix everything that uses a timer (or sleep).

Without this any function like eMMC/SD read/write/verify, TSEC/SE, etc can break when the time reaches the max value of the u32 microsecond timer (71minutes).

This fixes every possible breakage, including backup and restore (read/write/verify errors) that takes a lot of time.

The new max before a timer reset is now 48 days (the old one was 71 minutes)

ipl/mc.c

@@ -127,7 +127,7 @@ void mc_enable()
 	//Enable EMC DLL clock.
 	CLOCK(CLK_RST_CONTROLLER_CLK_ENB_X_SET) = (CLOCK(CLK_RST_CONTROLLER_CLK_ENB_X_SET) & 0xFFFFBFFF) | 0x4000;
 	CLOCK(CLK_RST_CONTROLLER_RST_DEV_H_SET) = 0x2000001; //Clear EMC and MC reset.
-	sleep(5);
+	usleep(5);
 
 	//#ifdef CONFIG_ENABLE_AHB_REDIRECT
 	mc_disable_ahb_redirect();