clk: qcom: gcc-sdm660: Add missing modem reset

This will be required in order to support the
modem upstream.

Signed-off-by: Konrad Dybcio <konradybcio@gmail.com>
Link: https://lore.kernel.org/r/20200726111215.22361-2-konradybcio@gmail.com


Fixes: f2a76a29 ("clk: qcom: Add Global Clock controller (GCC) driver for SDM660")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>