Since mdss_dsi_phy* providers only support two clocks, fix current
implementation which indexes out of bounds and causes a failure
in dsi when trying to get clocks.
Change-Id: I671b1f4032c124a515c4d5cebbbd098fdfaca95e
Signed-off-by: Rohith Iyer <quic_rohiiyer@quicinc.com>