drm/msm: update reset value of rotation property to zero

The reset value is currently set to rotate_0, which is not
one of the support values of default sde plane property.
Correct the reset value of plane rotation property to 0
to match property convention.

CRs-Fixed: 2009714
Change-Id: I1eeea0426237e38b4d1d5eb07b4a4522f5179336
Signed-off-by: Alan Kwong <akwong@codeaurora.org>