ARM: dts: msm: update stub regulator devices for msmcobalt

An updated power grid shows changes to APC phase pairings,
min/max voltage settings, and removal of some regulators.

Update the stub regulators to reflect these changes.

Change-Id: I9f520ef34459968ca911f4ed30eecc8712ce80e0
Signed-off-by: Nicholas Troast <ntroast@codeaurora.org>