ARM: dts: msm: Disable Venus GDSC collapse for 8974v2.2 and 8974Pro

The sudden current draw occurring when restoring Venus from GDSC
collapse may cause general instability on some platforms. Disable
this feature by default.

CRs-Fixed: 597489
Change-Id: I4e62b913d0206063547ad59ccd8029aa1c5aee16
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>