clk: qcom: update dsi 14nm PLL clock names

This change updates the name strings for various
DSI 14nm PLL clocks, so that it can work with
corresponding upstream clock driver.

Change-Id: I8a3c7549ccb13b88ba301a7a72411f4d32817b66
Signed-off-by: Sandeep Panda <spanda@codeaurora.org>