iommu: msm: Make regulators optional

Do not error out if regulators aren't specified in the device tree
node for an IOMMU. This allows IOMMU drivers to be used in simulation
environment and for early bringup of hardware.

Change-Id: I9bb6c3faa7ba5aed482bdad6612197497f7a849d
Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>
Linux 3.4.83

Change-Id: I3743553ad5d86951a133aaf4fca3793739e0e427
Signed-off-by: houst0nn <houstonn@gmail.com>
msm: acpuclock-8974: fix CPU voltage limits to support additional parts

The following CPU frequency tables contain voltages higher than
than the previous limit of 1.1V:
	pro_rev1_2p5g_pvs0
	pro_rev1_2p5g_pvs1

Increase the limits to support the parts that use these tables.

Change-Id: Ife39497265ee5301de31ba91dcf0ff0ec2aeef61
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>