msm/dsi: retun cur_mode if not support multiple refresh rate

retun cur_mode if there is no switch data.

Bug: 165768235
Test: check state on sofef01 and s6e3hc2
Signed-off-by: Ken Huang <kenbshuang@google.com>
Change-Id: I2011825e48bf8e345ad394ab188e9b3741548fd5
1 file changed
tree: 39ee41bc7aa8b0a6d0045a7c26ca920de3e6405c
  1. config/
  2. msm/
  3. pll/
  4. rotator/
  5. Makefile
  6. NOTICE