openrisc: Add openrisc-generic example board

Signed-off-by: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
diff --git a/boards.cfg b/boards.cfg
index 35bc525..576b392 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -363,6 +363,7 @@
 nios2-generic                nios2       nios2       nios2-generic       altera
 PCI5441                      nios2       nios2       pci5441             psyent
 PK1C20                       nios2       nios2       pk1c20              psyent
+openrisc-generic             openrisc    or1200      openrisc-generic    openrisc       -
 EVB64260                     powerpc     74xx_7xx    evb64260            -              -           EVB64260
 EVB64260_750CX               powerpc     74xx_7xx    evb64260            -              -           EVB64260
 P3G4                         powerpc     74xx_7xx    evb64260