MAINTAINERS: add entries for timer/m48t59

Signed-off-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: NHervé Poussineau <hpoussin@reactos.org>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

MAINTAINERS

@@ -735,6 +735,8 @@ F: hw/pci-host/prep.[hc]
 F: hw/isa/i82378.c
 F: hw/isa/pc87312.[hc]
 F: hw/dma/i82374.c
+F: hw/timer/m48t59-isa.c
+F: include/hw/timer/m48t59.h
 F: pc-bios/ppc_rom.bin
 
 sPAPR