[POWERPC] MAINTAINERS shouldn't reference linuxppc-embedded

Powerpc patches should be posted to [e-mail], so modify
MAINTAINERS to no longer reference [e-mail].

Signed-off-by: Mark A. Greer <[e-mail]>
Signed-off-by: Paul Mackerras <[e-mail]>

MAINTAINERS

···
 M:	[e-mail]
 P:	Vitaly Bordug
 M:	[e-mail]
-L:	[e-mail]
+L:	[e-mail]
 L:	[e-mail]
 S:	Maintained
 
···
 P:	Li Yang
 M:	[e-mail]
 L:	[e-mail]
-L:	[e-mail]
+L:	[e-mail]
 S:	Maintained
 
 FREESCALE QUICC ENGINE UCC ETHERNET DRIVER
 P:	Li Yang
 M:	[e-mail]
 L:	[e-mail]
-L:	[e-mail]
+L:	[e-mail]
 S:	Maintained
 
 FILE LOCKING (flock() and fcntl()/lockf())
···
 W:	http://www.246tNt.com/mpc52xx/
 W:	http://www.penguinppc.org/
 L:	[e-mail]
-L:	[e-mail]
 S:	Maintained
 
 LINUX FOR POWERPC EMBEDDED PPC4XX
···
 P:	Matt Porter
 M:	[e-mail]
 W:	http://www.penguinppc.org/
-L:	[e-mail]
+L:	[e-mail]
 T:	git kernel.org:/pub/scm/linux/kernel/git/jwboyer/powerpc.git
 S:	Maintained
 
···
 P:	Tom Rini
 M:	[e-mail]
 W:	http://www.penguinppc.org/
-L:	[e-mail]
+L:	[e-mail]
 S:	Maintained
 
 LINUX FOR POWERPC EMBEDDED PPC8XX
 P:	Marcelo Tosatti
 M:	[e-mail]
 W:	http://www.penguinppc.org/
-L:	[e-mail]
+L:	[e-mail]
 S:	Maintained
 
 LINUX FOR POWERPC EMBEDDED PPC83XX AND PPC85XX
 P:	Kumar Gala
 M:	[e-mail]
 W:	http://www.penguinppc.org/
-L:	[e-mail]
+L:	[e-mail]
 S:	Maintained
 
 LINUX FOR POWERPC PA SEMI PWRFICIENT
···
 P:	Eugene Surovegin
 M:	[e-mail]
 W:	http://kernel.ebshome.net/emac/
-L:	[e-mail]
+L:	[e-mail]
 L:	[e-mail]
 S:	Maintained