Fixed a wrong written patch.

Author: kei

board/raspberrypi0w/patches/002-genimage.patch

@@ -1,6 +1,6 @@
---- buildroot/board/raspberrypi0w/genimage-raspberrypi0w.cfg	2019-12-15 01:30:06.780360896 +0100
-+++ buildroot/board/raspberrypi0w/genimage-raspberrypi0w.cfg	2019-12-11 23:21:16.251825000 +0100
-@@ -5,8 +5,8 @@
+--- buildroot/board/raspberrypi/genimage-raspberrypi0w.cfg	2019-12-16 22:46:54.731707341 +0100
++++ buildroot/board/raspberrypi/genimage-raspberrypi0w.cfg	2019-12-16 22:48:34.608159133 +0100
+@@ -5,8 +5,9 @@
        "rpi-firmware/bootcode.bin",
        "rpi-firmware/cmdline.txt",
        "rpi-firmware/config.txt",
@@ -12,3 +12,8 @@
        "rpi-firmware/overlays",
        "zImage"
      }
+@@ -29,3 +30,4 @@
+     image = "rootfs.ext4"
+   }
+ }
++