ARM: dts: mdm9630: Add another memory hole

Linux was incorrectly using the memory that belonged to another subsystem.
This change adds one more memory hole to address this issue.

Change-Id: Iea41756e98cc89137fa93280570e278ef6812680
Signed-off-by: Smita Solanki <ssolanki@codeaurora.org>
Signed-off-by: Devendra Patel <cdevenp@codeaurora.org>