hdmitx: Optimize the hdmitx clk source switching process [2/2]

PD#SWPL-174933

Problem:
hdmitx encp/pixel clk is directly configured by the pll analog path.

Solution:
Add flag: clk_analog_path, which is 1 by default.
1:Analog frequency division
0:Digital frequency division

Verify:
s7d/s7

Test:
DRM-TX-78

Change-Id: I22e58995b7e073e7458531827ea9bb360402e058
Signed-off-by: zhou.han <zhou.han@amlogic.com>
7 files changed