pinctrl: samsung: pinctrl-s3c24xx: Fix formatting issues

Kerneldoc struct titles must be followed by whitespace.  Also attributes
need to be in the format '@.*: ' else the checker gets confused.

Fixes the following W=1 kernel build warning(s):

 drivers/pinctrl/samsung/pinctrl-s3c24xx.c:100: warning: cannot understand function prototype: 'struct s3c24xx_eint_domain_data '
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: linux-samsung-soc@vger.kernel.org
Link: https://lore.kernel.org/r/20200713144930.1034632-8-lee.jones@linaro.orgSigned-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/samsung/pinctrl-s3c24xx.c

@@ -80,7 +80,7 @@ static const struct samsung_pin_bank_type bank_type_2bit = {
 	}
 
 /**
- * struct s3c24xx_eint_data: EINT common data
+ * struct s3c24xx_eint_data - EINT common data
  * @drvdata: pin controller driver data
  * @domains: IRQ domains of particular EINT interrupts
  * @parents: mapped parent irqs in the main interrupt controller
@@ -92,10 +92,10 @@ struct s3c24xx_eint_data {
 };
 
 /**
- * struct s3c24xx_eint_domain_data: per irq-domain data
+ * struct s3c24xx_eint_domain_data - per irq-domain data
  * @bank: pin bank related to the domain
  * @eint_data: common data
- * eint0_3_parent_only: live eints 0-3 only in the main intc
+ * @eint0_3_parent_only: live eints 0-3 only in the main intc
  */
 struct s3c24xx_eint_domain_data {
 	struct samsung_pin_bank *bank;