hwdb: Move MSI touchpad-toggle mapping to generic MSI section

hwdb: Move MSI touchpad-toggle mapping to generic MSI section

Like other MSI laptops the MSI Summit E16 Flip A12UCT laptop also send
atkbd scancode 0x76 for the Fn + F4 touchpad-toggle hotkey combo.

Move the existing mapping for this from the MSI Prestige And MSI Modern
section to the generic MSI laptop section.

While at it also drop the KEYBOARD_KEY_f1=f20 mapping from
the MSI Prestige And MSI Modern section, as that is already listed
in the generic MSI laptop section.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=216824