ANDROID: softirq: add tasklet to LONG_SOFTIRQ_MASK

In commit 35a06697 ("FROMLIST: sched: Avoid placing RT threads on cores handling long softirqs"), the patch drop TASKLET_SOFTIRQ from LONG_SOFTIRQS.

Some drivers use tasklet softirq for data reception from firmware. When
there's a high volume or continuous stream of data from the firmware,
it can lead to unexpectedly long execution times for RT tasks and further cause jank or audio glitch.

Bug: 333895950
Test: check tasklet are defered when RT task is running

Change-Id: I53d6b43fe5a8860758898f09810a52fe319344f9
Signed-off-by: lukechang <lukechang@google.com>
(cherry picked from commit 35478215)
Signed-off-by: John Stultz <jstultz@google.com>