beagle_x15: Change system and userdata partition size

System image size increased with the recent master builds.

This patch changes max system and userdata image partition size.

Note: As per http://beagleboard.org/x15 onboard eMMC is 4GB.
Hence all android partitions has to fit in the limited media storage.

Change-Id: I03d917bdfdb43b59dd592f5aaa4920624d86d7d7
Signed-off-by: Mykhailo Sopiha <mykhailo.sopiha@linaro.org>
[update commitmsg and userdata max size]
Signed-off-by: Praneeth Bajjuri <praneeth@ti.com>
1 file changed