Input: st1232 - read firmware version and revision

Input: st1232 - read firmware version and revision

According to the data sheet, the st1332 contains a firmware, which may
be updated. The version and revision of the firmware may be read from
the registers of the device.

Read the firmware version and revision and report it to the log when
probing the device.

Suggested-by: Khalid Talash <ktalash@topcon.com>
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Link: https://patch.msgid.link/20260123-input-st1232-firmware-version-v1-1-32df7eefdafe@pengutronix.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>