soc: qcom: glink_smem_native_xprt: Fix memory leak during qos init

In function parse_qos_dt_params, memory is allocated to arr32 but it
is never freed.

Free memory when exiting the function.

CRs-Fixed: 2093722
Change-Id: Ic1fc58c6685990e2865ef4033b54303d47311560
Signed-off-by: Dhoat Harpal <hdhoat@codeaurora.org>