markw: dtsi: Venus memory allocation change to statics

from kernel log, find " subsys-pil-tz 1de0000.qcom,venus: venus: Failed
to allocate relocatable region of size 500000; msm_vidc: err: Failed to
download firmware", add property "linux,reserve-region", keep venus memory
will not be given back to the system alloctor.

Change-Id: I3989aad63dbffc9d436fd93b58839c8f8c859cf2
Signed-off-by: zhouwl <zhouwl@lenovo.com>
Reviewed-on: http://gerrit.mot.com/845346


SLTApproved: Slta Waiver <sltawvr@motorola.com>
SME-Granted: SME Approvals Granted
Tested-by: Jira Key <jirakey@motorola.com>
Reviewed-by: Sabyasachi Singh <txwv64@motorola.com>
Reviewed-by: Igor Kovalenko <igork@motorola.com>
Reviewed-by: Jonathan Eklund <jeklund@motorola.com>
Submit-Approved: Jira Key <jirakey@motorola.com>