debian: fix indentation in dh_makeshlibs

debian/rules is a Makefile, so recipes must be indented with tabs.

BUG=none
TEST=kokoro mesa job succeeds

Change-Id: If9e0f77854bf9cf1c881c7b201cad57261e33047
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/mesa/+/1718355
Legacy-Commit-Queue: Commit Bot <commit-bot@chromium.org>
Reviewed-by: David Riley <davidriley@chromium.org>
Commit-Queue: Stephen Barber <smbarber@chromium.org>
Tested-by: Stephen Barber <smbarber@chromium.org>
1 file changed