gpu/host1x: fence: Make spinlock static

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2154295
Upstream Status: v5.15-rc4

commit a81cf83
Author:     Dmitry Osipenko <digetx@gmail.com>
AuthorDate: Tue Aug 17 05:01:53 2021 +0300
Commit:     Thierry Reding <treding@nvidia.com>
CommitDate: Thu Sep 16 18:06:51 2021 +0200

    The DEFINE_SPINLOCK macro creates a global spinlock symbol that is visible
    to the whole kernel. This is unintended in the code, fix it.

    Fixes: 687db22 ("gpu: host1x: Add DMA fence implementation")
    Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
    Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
    Signed-off-by: Thierry Reding <treding@nvidia.com>

Signed-off-by: Mika Penttilä <mpenttil@redhat.com>

Author: Mika Penttilä

drivers/gpu/host1x/fence.c

@@ -15,7 +15,7 @@
 #include "intr.h"
 #include "syncpt.h"
 
-DEFINE_SPINLOCK(lock);
+static DEFINE_SPINLOCK(lock);
 
 struct host1x_syncpt_fence {
 	struct dma_fence base;