qemu/mipsel-malta: update readme and use kernel version 3.2

Update configuration to use kernel version 3.2
Also update the readme to use buildroot basedir as a reference for
kernel and rootfs like the other samples do.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

board/qemu/mipsel-malta/readme.txt

@@ -1,6 +1,6 @@
 Run the emulation with:
 
- qemu-system-mipsel -M malta -kernel vmlinux -serial stdio -hda rootfs.ext2 -append "root=/dev/hda"
+ qemu-system-mipsel -M malta -kernel output/images/vmlinux -serial stdio -hda output/images/rootfs.ext2 -append "root=/dev/hda"
 
 The login prompt will appear in the terminal that started Qemu. The
 graphical window is the framebuffer. No keyboard support has been

configs/qemu_mipsel_malta_defconfig

@@ -9,9 +9,9 @@ BR2_TARGET_ROOTFS_EXT2=y
 # Kernel
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="3.1"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="3.2"
 BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
-BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/qemu/mipsel-malta/linux-3.1.config"
+BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/qemu/mipsel-malta/linux-3.2.config"
 BR2_LINUX_KERNEL_VMLINUX=y
 
 # Serial port config