checkrom: Fix typo in error message

increate -> increase

Signed-off-by: Andreas Färber <afaerber@suse.de>
diff --git a/scripts/checkrom.py b/scripts/checkrom.py
index 377277d..aced5e2 100755
--- a/scripts/checkrom.py
+++ b/scripts/checkrom.py
@@ -39,7 +39,7 @@
                 finalsize = 256*1024
     if datasize > finalsize:
         print("Error!  ROM doesn't fit (%d > %d)" % (datasize, finalsize))
-        print("   You have to either increate the size (CONFIG_ROM_SIZE)")
+        print("   You have to either increase the size (CONFIG_ROM_SIZE)")
         print("   or turn off some features (such as hardware support not")
         print("   needed) to make it fit.  Trying a more recent gcc version")
         print("   might work too.")