soc: fsl: cpm1: qmc: Rename QMC_TSA_MASK

soc: fsl: cpm1: qmc: Rename QMC_TSA_MASK

QMC_TSA_MASK is a bitfield. The value defined is a specific value of
this bitfield and correspond to the use of 8bit resolution for the
routing entry.

Be accurate and rename the defined constant to reflect this point.

Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Link: https://lore.kernel.org/r/20240808071132.149251-18-herve.codina@bootlin.com
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>