tpm: don't export static functions

Today's linux-next build (powerpc_allyesconfig) failed like this:

drivers/char/tpm/tpm.c:1162: error: __ksymtab_tpm_dev_release causes a section type conflict

Caused by commit 253115b ("The
tpm_dev_release function is only called for platform devices, not pnp")
which exported a static function.

Signed-off-by: Stephen Rothwell <[email protected]>
Cc: Rajiv Andrade <[email protected]>
Cc: James Morris <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

drivers/char/tpm/tpm.c

@@ -1157,7 +1157,7 @@ EXPORT_SYMBOL_GPL(tpm_dev_vendor_release);
  * Once all references to platform device are down to 0,
  * release all allocated structures.
  */
-static void tpm_dev_release(struct device *dev)
+void tpm_dev_release(struct device *dev)
 {
 	struct tpm_chip *chip = dev_get_drvdata(dev);