maintainers: Fix PS3 patterns

Correct the MAINTAINERS file patterns for PS3.  Removes some PS3
patterns that were under 'CELL BROADBAND ENGINE ARCHITECTURE', and
adds missing PS3 sound and RTC driver patterns.

CC: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: NGeoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

MAINTAINERS

@@ -1280,12 +1280,9 @@ L:	cbe-oss-dev@ozlabs.org
 W:	http://www.ibm.com/developerworks/power/cell/
 S:	Supported
 F:	arch/powerpc/include/asm/cell*.h
-F:	arch/powerpc/include/asm/lv1call.h
-F:	arch/powerpc/include/asm/ps3*.h
 F:	arch/powerpc/include/asm/spu*.h
 F:	arch/powerpc/oprofile/*cell*
 F:	arch/powerpc/platforms/cell/
-F:	arch/powerpc/platforms/ps3/
 
 CERTIFIED WIRELESS USB (WUSB) SUBSYSTEM:
 P:	David Vrabel
@@ -4441,7 +4438,9 @@ F:	arch/powerpc/include/asm/ps3*.h
 F:	arch/powerpc/platforms/ps3/
 F:	drivers/*/ps3*
 F:	drivers/ps3/
+F:	drivers/rtc/rtc-ps3.c
 F:	drivers/usb/host/*ps3.c
+F:	sound/ppc/snd_ps3*
 
 PS3VRAM DRIVER
 P:	Jim Paris