soc: qcom: glink: Free if_ptr before freeing dummy transport

Dummy transport is only way to access if_ptr. When dummy
transport is freed, if_ptr allocated for dummy transport is
not freed. This result in memory leak.

kfree of if_ptr is called before freeing dummy transport.

CRs-Fixed: 2116744
Change-Id: I832e0fcde418b7c3d992f50e817866bc9075da3c
Signed-off-by: Dhoat Harpal <hdhoat@codeaurora.org>