Limited RAM on Raspberry Pi 2 with the image by lool

[Philipp Lorenz]

Hi,

I'm running the latest Snappy Ubuntu image from "lool" on my Raspberry 
Pi 2 (from this site: 
http://people.canonical.com/~lool/pi2-device-and-oem/ ) and it seems 
that the RAM is limited to a very low amount:

(RaspberryPi2)ubuntu at localhost:/boot/uboot$ cat /proc/meminfo | grep 
MemTotal
MemTotal:         119508 kB

So it's actually 116 MB, but there should be almost 1 GB of available 
RAM. I assume that it's a problem with the GPU memory split. Since 
there's no config.txt in the boot folder, I tried modifying the 
"snappy_cmdline" parameter in the file "snappy_system.txt" to set 
gpu_mem=128, but it seems that nothing that I put in there changes anything.

So, can anyone help me increasing the available amount of RAM please?

Thanks in advance!
Philipp