msm: gsi: Fix GSIDBG formatting error

This patch fixes wrong format specifier to match their data types.

Change-Id: Ie0392c708a1f4fbc91a15dbdb84e573557e742ad
Signed-off-by: Manohar Vavilapalli <mvavilap@codeaurora.org>
Signed-off-by: Shreyas K K <shrekk@codeaurora.org>