i3c: mipi-i3c-hci: Clear INTR_STATUS unconditionally

Status fields in INTR_STATUS register are write 1 to clear so do it
unconditionally and move clearing of them out of an if block.

Suggested-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20250409140401.299251-3-jarkko.nikula@linux.intel.com


Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>