Spell "unkown" correctly in error_report() arguments

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
diff --git a/hw/lm32_timer.c b/hw/lm32_timer.c
index ed28984..49cbb22 100644
--- a/hw/lm32_timer.c
+++ b/hw/lm32_timer.c
@@ -86,7 +86,7 @@
         r = (uint32_t)ptimer_get_count(s->ptimer);
         break;
     default:
-        error_report("lm32_timer: read access to unkown register 0x"
+        error_report("lm32_timer: read access to unknown register 0x"
                 TARGET_FMT_plx, addr << 2);
         break;
     }
@@ -124,7 +124,7 @@
                 TARGET_FMT_plx, addr << 2);
         break;
     default:
-        error_report("lm32_timer: write access to unkown register 0x"
+        error_report("lm32_timer: write access to unknown register 0x"
                 TARGET_FMT_plx, addr << 2);
         break;
     }