mfd: tqmx86: Improve gpio_irq module parameter description

Clarify that "7, 9, 12" refers to the valid arguments that can be
passed as gpio_irq.

Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Link: https://lore.kernel.org/r/3275f436b66f6807c02256bc852d39b03ebd64d5.1731325758.git.matthias.schiffer@ew.tq-group.com
Signed-off-by: Lee Jones <lee@kernel.org>

drivers/mfd/tqmx86.c

@@ -58,7 +58,7 @@
 
 static uint gpio_irq;
 module_param(gpio_irq, uint, 0);
-MODULE_PARM_DESC(gpio_irq, "GPIO IRQ number (7, 9, 12)");
+MODULE_PARM_DESC(gpio_irq, "GPIO IRQ number (valid parameters: 7, 9, 12)");
 
 static const struct resource tqmx_i2c_soft_resources[] = {
 	DEFINE_RES_IO(TQMX86_IOBASE_I2C, TQMX86_IOSIZE_I2C),