fs/ext2: always pass the number of inodes

... since zero also means auto for the mke2img script, now.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

fs/ext2/ext2.mk

@@ -8,9 +8,8 @@ EXT2_OPTS = -G $(BR2_TARGET_ROOTFS_EXT2_GEN) -R $(BR2_TARGET_ROOTFS_EXT2_REV)
 
 EXT2_OPTS += -b $(BR2_TARGET_ROOTFS_EXT2_BLOCKS)
 
-ifneq ($(strip $(BR2_TARGET_ROOTFS_EXT2_INODES)),0)
 EXT2_OPTS += -i $(BR2_TARGET_ROOTFS_EXT2_INODES)
-endif
+
 EXT2_OPTS += -I $(BR2_TARGET_ROOTFS_EXT2_EXTRA_INODES)
 
 ifneq ($(strip $(BR2_TARGET_ROOTFS_EXT2_RESBLKS)),0)