[DO NOT MERGE] Reduce padding in QS for small screens

Reduces the padding between tiles in QS when the screen is <740dp
high in portrait. That way, more rows can fit in some cases (high
display size, security footer).

Test: manual
Bug: 168561056
Change-Id: I41cdb3bccd93fbdcbaa99742e450dd72e4b2effd
2 files changed