uboot-envtools: remove erasesize from MMC config

Erasesize doesn't belong in the u-boot env config for block devices as it is
known to be 512 byte aligned.

Signed-off-by: Tim Harvey <[email protected]>

package/boot/uboot-envtools/files/imx6

@@ -24,8 +24,8 @@ apalis*)
 		ubootenv_add_uci_config /dev/mtd1 0x80000 0x20000 0x40000
 	else
 		# board boots from microSD
-		ubootenv_add_uci_config /dev/mmcblk0 0xb1400 0x20000 0x20000
-		ubootenv_add_uci_config /dev/mmcblk0 0xd1400 0x20000 0x20000
+		ubootenv_add_uci_config /dev/mmcblk0 0xb1400 0x20000
+		ubootenv_add_uci_config /dev/mmcblk0 0xd1400 0x20000
 	fi
 	;;
 wandboard)