ARM: dts: msm: Fix typo for vls_clamp_reg on Trinket

The vls_clamp_reg is needed to needed to clamp the
SS PHY lines for autonomous mode. Fix the typo so
that the driver can parse the register base and
clamp the PHY accordingly.

Change-Id: If3bee04bac95606b2fc4467175cc107a50691cde
Signed-off-by: Sriharsha Allenki <sallenki@codeaurora.org>