RISC-V: Add Jim Wilson as a maintainer, and clean up our entries

Jim has recently started working at SiFive, where he'll be contributing
to our binutils port.  Andrew and I would like him to be a maintainer.
My understanding is that this is right place to ask.

I've also changed my address to my SiFive one, where I also work -- it
seems cleaner to have everyone use our proper email address.  While I
was in there, I noticed a trailing space after Andrew's name so I went
ahead and removed it as well.

binutils/ChangeLog

2017-11-07  Palmer Dabbelt  <palmer@sifive.com>

        * MAINTAINERS (RISC-V): Add Jim Wilson as a maintainer.
        Clean up Andrew's entry (remove trailing space, add tabs).
        Change Palmer's email address, and clean up entry (add tabs).

binutils/ChangeLog

@@ -1,3 +1,9 @@
+2017-11-07  Palmer Dabbelt  <palmer@sifive.com>
+
+	* MAINTAINERS (RISC-V): Add Jim Wilson as a maintainer.
+	Clean up Andrew's entry (remove trailing space, add tabs).
+	Change Palmer's email address, and clean up entry (add tabs).
+
 2017-11-07  Alan Modra  <amodra@gmail.com>
 
 	* dwarf.c (read_uleb128): Properly pluralize messages.

binutils/MAINTAINERS

@@ -117,8 +117,9 @@ responsibility among the other maintainers.
   PPC		   Alan Modra <amodra@gmail.com>
   PPC		   Peter Bergner <bergner@vnet.ibm.com>
   PPC vector ext   Aldy Hernandez <aldyh@redhat.com>
-  RISC-V           Palmer Dabbelt <palmer@dabbelt.com>
-  RISC-V           Andrew Waterman <andrew@sifive.com> 
+  RISC-V	   Palmer Dabbelt <palmer@sifive.com>
+  RISC-V	   Andrew Waterman <andrew@sifive.com>
+  RISC-V	   Jim Wilson <jim@sifive.com>
   RL78             DJ Delorie <dj@redhat.com>
   RX               DJ Delorie <dj@redhat.com>
   RX               Nick Clifton <nickc@redhat.com>