x86/cpu: Drop pointless static qualifier in punit_dev_state_show()

There is no need to have the 'struct dentry *dev_state' variable static
since new value always be assigned before use it.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: kernel-janitors@vger.kernel.org
Link: http://lkml.kernel.org/r/1539340822-117563-1-git-send-email-yuehaibing@huawei.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

arch/x86/platform/atom/punit_atom_debug.c

@@ -115,7 +115,7 @@ static struct dentry *punit_dbg_file;
 
 static int punit_dbgfs_register(struct punit_device *punit_device)
 {
-	static struct dentry *dev_state;
+	struct dentry *dev_state;
 
 	punit_dbg_file = debugfs_create_dir("punit_atom", NULL);
 	if (!punit_dbg_file)