[top/padctrl] Remove inside in generate if
[top/padctrl] Remove inside in generate if

Signed-off-by: Naoya Hatta <1409f16403a5c6012d841ef7b0fc01b38bda4b59@gmail.com>

lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan