clk: qcom: smd-rpm: rename some msm8974 active-only clocks

Rename msm8974_diff_a_clk, msm8974_div_a_clk1 and msm8974_div_a_clk2 to
move the _a suffix to the end of the name. This follows the pattern used
by other active-only clocks and thus makes it possible to simplify clock
definitions.
This changes the userspace-visible names for this clocks.

Reviewed-by: Alex Elder <elder@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221209164855.128798-14-dmitry.baryshkov@linaro.org