INT 15 - APM SL Enhanced v1.0 - GET AUTO POWER OFF TIMER                        
	AX = 5380h
	BH = 04h
Return: CF clear if successful
	SI:DI = timer count in seconds (actually 1.024 seconds)
Desc:	reads the value of 82360SL APWR_TMRH & APWR_TMRL registers
SeeAlso: AX=5380h/BH=02h,AX=5380h/BH=05h,AX=5380h/BH=06h,AX=5380h/BH=7Fh