soc: fsl: cpm1: qmc: Remove inline function specifiers

The inline function specifier is present on some functions but it is
better to let the compiler decide inlining or not these functions.

Remove inline specifiers.

Fixes: 3178d58e ("soc: fsl: cpm1: Add support for QMC")
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Suggested-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Link: https://lore.kernel.org/r/20231205152116.122512-6-herve.codina@bootlin.com