x11 for evbarm

[Hiroyuki Bessho <bsh%NetBSD.org@localhost>]

Hi,

   I'm going to enable x11 build for evbarm as in attached patch, if
there is no objections.

   Xorg server with wsfb driver works OK on some of evbarm platforms
which have LCD frame buffers.

BR
bsh

Index: external/mit/xorg/server/drivers/Makefile
===================================================================
RCS file: /cvsroot/src/external/mit/xorg/server/drivers/Makefile,v
retrieving revision 1.60
diff -u -r1.60 Makefile
--- external/mit/xorg/server/drivers/Makefile   30 Aug 2011 04:22:56 -0000      
1.60
+++ external/mit/xorg/server/drivers/Makefile   30 Mar 2012 03:02:00 -0000
@@ -147,6 +147,11 @@
        xf86-video-wsfb
 .endif # ${MACHINE} == "dreamcast"
 
+.if ${MACHINE} == "evbarm"
+SUBDIR+= \
+       xf86-video-wsfb
+.endif # ${MACHINE} == "evbarm"
+
 .if ${MACHINE} == "evbmips"
 SUBDIR+= \
        xf86-video-siliconmotion \
Index: external/mit/xorg/server/xorg-server/Makefile.common
===================================================================
RCS file: /cvsroot/src/external/mit/xorg/server/xorg-server/Makefile.common,v
retrieving revision 1.23
diff -u -r1.23 Makefile.common
--- external/mit/xorg/server/xorg-server/Makefile.common        30 Aug 2011 
04:22:56 -0000      1.23
+++ external/mit/xorg/server/xorg-server/Makefile.common        30 Mar 2012 
03:02:01 -0000
@@ -13,6 +13,7 @@
     ${MACHINE} == "cats"       || \
     ${MACHINE} == "dreamcast"  || \
     ${MACHINE} == "ews4800mips"        || \
+    ${MACHINE} == "evbarm"     || \
     ${MACHINE} == "evbmips"    || \
     ${MACHINE} == "hp300"      || \
     ${MACHINE} == "hpcarm"     || \
Index: external/mit/xorg/server/xorg-server/hw/xfree86/xorgos/Makefile
===================================================================
RCS file: 
/cvsroot/src/external/mit/xorg/server/xorg-server/hw/xfree86/xorgos/Makefile,v
retrieving revision 1.31
diff -u -r1.31 Makefile
--- external/mit/xorg/server/xorg-server/hw/xfree86/xorgos/Makefile     30 Aug 
2011 04:22:56 -0000      1.31
+++ external/mit/xorg/server/xorg-server/hw/xfree86/xorgos/Makefile     30 Mar 
2012 03:02:01 -0000
@@ -69,6 +69,7 @@
 .endif
 
 .if ${MACHINE} == "cats" || \
+    ${MACHINE} == "evbarm" || \
     ${MACHINE} == "hpcarm" || \
     ${MACHINE} == "shark" || \
     ${MACHINE} == "netwinder" || \