Sony ever so graciously provides GPIO line names in their downstream
kernel (though sometimes they are not 100% accurate and you can judge
that by simply looking at them and with what drivers they are used).

Add these to the Yoshino devices DTs to better document the hardware.

Lilac and Poplar have identical pin assignments.
Diff between these two and maple:

TLMM:
-  "NC",
+  "TS_VDDIO_EN",

PMI8998:
-  "NC"
+  "USB_SWITCH_SEL"

-  "NC"
+  "4K_DISP_DCDC_EN"

PM8005:
-  "NC"
+  "EAR_EN"

Which is probably due to Maple being designed and released quite a bit
earlier than the other two and it having a super high tech true-4K
display.
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230314-topic-yoshino_gpio-v2-1-4cb80e187e38@linaro.org