ARM: dts: msm: add hardware cursor offsets for msm8994

msm8994 has dedicated hardware cursor registers that need
to parsed and programmed independently.

Change-Id: I27b70b31f7856c49957679bfab5791f434ec4f0b
Signed-off-by: Sree Sesha Aravind Vadrevu <svadrevu@codeaurora.org>
Signed-off-by: Veera Sundaram Sankaran <veeras@codeaurora.org>