mac80211: fix build on linux kernel 5.4.291+

Author: coolsnowwolf

package/kernel/mac80211/patches/build/992-fix-tasklet_setup-build-kernel-5.4.patch

@@ -0,0 +1,11 @@
+--- a/backport-include/linux/interrupt.h
++++ b/backport-include/linux/interrupt.h
+@@ -43,7 +43,7 @@
+ 
+ #endif
+ 
+-#if LINUX_VERSION_IS_LESS(5,9,0)
++#if LINUX_VERSION_IS_LESS(5,4,291)
+ 
+ static inline void
+ tasklet_setup(struct tasklet_struct *t,