fs/ext2: ensure -b option is always set for mke2img

Signed-off-by: J Evans <g4@novadsp.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

fs/ext2/ext2.mk

@@ -6,9 +6,7 @@
 
 EXT2_OPTS = -G $(BR2_TARGET_ROOTFS_EXT2_GEN) -R $(BR2_TARGET_ROOTFS_EXT2_REV)
 
-ifneq ($(strip $(BR2_TARGET_ROOTFS_EXT2_BLOCKS)),0)
 EXT2_OPTS += -b $(BR2_TARGET_ROOTFS_EXT2_BLOCKS)
-endif
 
 ifneq ($(strip $(BR2_TARGET_ROOTFS_EXT2_INODES)),0)
 EXT2_OPTS += -i $(BR2_TARGET_ROOTFS_EXT2_INODES)