soc: fsl: qe: ucc: Export ucc_mux_set_grant_tsa_bkpt

When TSA is compiled as module the following error is reported:
  "ucc_mux_set_grant_tsa_bkpt" [drivers/soc/fsl/qe/tsa.ko] undefined!

Indeed, the ucc_mux_set_grant_tsa_bkpt symbol is not exported.

Simply export ucc_mux_set_grant_tsa_bkpt.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202409051409.fszn8rEo-lkp@intel.com/


Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Acked-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>