[PATCH] opl3sa2: MODULE_PARM_DESC

opl3sa2: Fix "irq"-parameter name typo for parameter description.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>