clk: qcom: clock-mmss-8994: Remove non-fmax levels for axi_clk_src

Based on HW team's recommendation, MMSSNOC AXI should only scale to
fmax frequencies. Remove all non-fmax frequencies from frequency
table.

Change-Id: Iaca2303606aa1279a18c033c062817f67f1491fd
Signed-off-by: Junjie Wu <junjiew@codeaurora.org>