image: allow exactly KERNEL_SIZE sized kernels

The KERNEL_SIZE should be the maximum size, inclusive, so we need to
check for greater equal, not just greater.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

SVN-Revision: 46792

include/image.mk

@@ -385,7 +385,7 @@ define Build/pad-offset
 endef
 
 define Build/check-size
-	@[ $$(($(subst k,* 1024,$(subst m, * 1024k,$(1))))) -gt "$$(stat -c%s $@)" ] || { \
+	@[ $$(($(subst k,* 1024,$(subst m, * 1024k,$(1))))) -ge "$$(stat -c%s $@)" ] || { \
 		echo "WARNING: Image file $@ is too big" >&2; \
 		rm -f $@; \
 	}
@@ -459,7 +459,7 @@ endef
 endif
 
 define Device/Build/check_size
-	@[ $$(($(subst k,* 1024,$(subst m, * 1024k,$(1))))) -gt "$$(stat -c%s $@)" ] || { \
+	@[ $$(($(subst k,* 1024,$(subst m, * 1024k,$(1))))) -ge "$$(stat -c%s $@)" ] || { \
 		echo "WARNING: Image file $@ is too big" >&2; \
 		rm -f $@; \
 	}