atmel: Update support of board AT91SAM9M10G45-EK to new style

Based on earlier work by Alex Waterman <awaterman@dawning.com>.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
diff --git a/MAKEALL b/MAKEALL
index dd6b1fc..69a9ed9 100755
--- a/MAKEALL
+++ b/MAKEALL
@@ -443,9 +443,7 @@
 ## AT91 Systems
 #########################################################################
 
-LIST_at91="$(boards_by_soc at91)\
-	at91sam9m10g45ek	\
-"
+LIST_at91="$(boards_by_soc at91)"
 
 #########################################################################
 ## Xscale Systems