soc: qcom: glink: update function header format

Function header documentation in the .h file does not match the .c file
and also does not meeting current coding guidelines.

Update to meet coding guidelines.

Change-Id: I0c583701f9eeff60013f620d5e6f6058d758759d
Signed-off-by: Eric Holmberg <eholmber@codeaurora.org>