coccinelle: Add script to check for platform_get_irq() excessive prints

Add a coccinelle script to check for the usage of dev_err() after a call
to platform_get_irq{,_byname}() as it's redundant now that the function
already prints an error when it fails.

Cc: Greg Kroah-Hartman <[email protected]>
Cc: Rob Herring <[email protected]>
Cc: Bartlomiej Zolnierkiewicz <[email protected]>
Cc: Javier Martinez Canillas <[email protected]>
Cc: Andrzej Hajda <[email protected]>
Cc: Mark Brown <[email protected]>
Cc: Russell King - ARM Linux <[email protected]>
Cc: Marek Szyprowski <[email protected]>
Cc: Rafael J. Wysocki <[email protected]>
Cc: Andy Shevchenko <[email protected]>
Cc: Markus Elfring <[email protected]>
Signed-off-by: Stephen Boyd <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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