MAINTAINERS: RISC-V Updates

This patch set contains a pair of RISC-V related updates to the
MAINTAINERS file:

* Albert is now back at UC Berkeley.
* I've added myself as a maintainer for anything with "sifive" in the
  name.
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>

MAINTAINERS

@@ -12004,7 +12004,7 @@ F:	drivers/mtd/nand/raw/r852.h
 
 RISC-V ARCHITECTURE
 M:	Palmer Dabbelt <palmer@sifive.com>
-M:	Albert Ou <albert@sifive.com>
+M:	Albert Ou <aou@eecs.berkeley.edu>
 L:	linux-riscv@lists.infradead.org
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux.git
 S:	Supported
@@ -12764,6 +12764,14 @@ F:	drivers/media/usb/siano/
 F:	drivers/media/usb/siano/
 F:	drivers/media/mmc/siano/
 
+SIFIVE DRIVERS
+M:	Palmer Dabbelt <palmer@sifive.com>
+L:	linux-riscv@lists.infradead.org
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux.git
+S:	Supported
+K:	sifive
+N:	sifive
+
 SILEAD TOUCHSCREEN DRIVER
 M:	Hans de Goede <hdegoede@redhat.com>
 L:	linux-input@vger.kernel.org