msm: ipa4: Fix compile warnings

Fix the following compiler warning(s) from gcc 6.1.1 with -Werror enabled:

 drivers/platform/msm/gsi/gsi.c:3700:
   format '%d' expects argument of type 'int', but argument 6 has
	type 'long unsigned int' [-Werror=format=]
     GSIDBG("In IEOB WA pnd cnt = %d prvmode = %d\n",

Fixes: 10897b13 ("msm: ipa4: Fix race condition gsi channel polling mode variable")
Change-Id: Ic0dedbadbe3ac65c2d0e0de7acd8b8eb4af4b2d6
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>