INT 15 - APM SL Enhanced v1.0 - SET AUTO POWER OFF TIMER                        
	AX = 5380h
	BH = 05h
	SI:DI = timer count in seconds (actually 1.024 seconds)
Return: CF clear if successful
Desc:	sets the value of 82360SL APWR_TMRH & APWR_TMRL registers
Note:	the maximum timer count is 134213 seconds
SeeAlso: AX=5380h/BH=04h,AX=5380h/BH=7Fh