This patch adds support for the following Xperias:

* Z3+ [aka Z4 in some regions] (Ivy)
* Z4 Tablet (Karin)
* Z4 Tablet Wi-Fi (Karin_windy) [APQ8094]
* Z5 Compact (Suzuran)
* Z5 Premium (Satsuki)

These devices are very similar in terms of hardware, with main
differences being display panels.

While at it, update comments describing hardware used:
SMB charger seems to not be used after all, PMI8994 charger
is in use instead.
Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Link: https://lore.kernel.org/r/20210118162432.107275-1-konrad.dybcio@somainline.orgSigned-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>