media: atomisp: Use the actual value of the enum instead of the enum

hrt_isp_css_irq_sw_pin_0 has a different enum type than
irq_sw_channel_id_t.

Replace it with the actual value of hrt_isp_css_irq_sw_pin_0 to avoid
arithmetic operations between different enum types (and make the
compiler happy).

It is required to build with llvm 19 without these warnings:
.../sh_css_hrt.c:68:19: warning: arithmetic between different enumeration types ('irq_sw_channel_id_t' and 'enum hrt_isp_css_irq') [-Wenum-enum-conversion]
.../sh_css.c:1233:40: warning: arithmetic between different enumeration types ('irq_sw_channel_id_t' and 'enum hrt_isp_css_irq') [-Wenum-enum-conversion]
.../sh_css.c:1237:40: warning: arithmetic between different enumeration types ('irq_sw_channel_id_t' and 'enum hrt_isp_css_irq') [-Wenum-enum-conversion]

Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Link: https://lore.kernel.org/r/20241202-fix-llvm9-v1-2-2a50f5acfd0b@chromium.org


Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>