Change in coreboot[master]: soc/qualcomm/common: Make clock_configure() check for exact matches

[Julius Werner (Code Review)]

Attention is currently required from: Shelley Chen, Taniya Das, Paul Menzel.
Julius Werner has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/63289 )

Change subject: soc/qualcomm/common: Make clock_configure() check for exact matches
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Patch Set 7:

(1 comment)

File src/soc/qualcomm/sc7280/clock.c:

https://review.coreboot.org/c/coreboot/+/63289/comment/5228ba17_01812297 
PS7, Line 412: 				mdss_clk_cfg.hz = mdss_mdp_cfg[idx].hz;
This isn't enough: for the (clk_type != MDSS_CLK_MDP) clocks, we never get here. Also, since this is the <= search, hz doesn't necessarily match mdss_mdp_cfg[idx].hz.

In order to make the clock_configure() check work, hz doesn't actually have to match the real physical frequency that comes out of the hardware. All that the check tests is that clk_cfg[idx].hz == hz. So the cheap way to solve this here is to just put mdss_clk_cfg.hz = hz (outside of this if-block), like the sc7180 version already does. (That makes the test kind of pointless in this case, since clock_configure() is just comparing two fake values that you gave it, but it's an easy way to avoid the extra `strict` parameter for this one function where we actually don't have a perfect match we can find.)