MAINTAINERS: Some updates related to the SH4 machines

hw/intc/sh_intc.c and hw/timer/sh_timer.c seem to belong to
the R2D machine, as far as I can see.
And concerning the Shix machine, it does not make much sense
to have a "M:" entry here and the "S:" set to "Orphan". So
I'd like to suggest to use "Odd Fixes" here instead.
Signed-off-by: NThomas Huth <huth@tuxfamily.org>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

MAINTAINERS

@@ -675,10 +675,12 @@ R2D
 M: Magnus Damm <magnus.damm@gmail.com>
 S: Maintained
 F: hw/sh4/r2d.c
+F: hw/intc/sh_intc.c
+F: hw/timer/sh_timer.c
 
 Shix
 M: Magnus Damm <magnus.damm@gmail.com>
-S: Orphan
+S: Odd Fixes
 F: hw/sh4/shix.c
 
 SPARC Machines