ANDROID: softirq: add tasklet to LONG_SOFTIRQ_MASK

In commit 35a06697da792f6a8e56a600c671bdd980c10d36 ("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>

include/linux/interrupt.h

diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 1775475..cfa532c 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -590,7 +590,8 @@ enum
 #define LONG_SOFTIRQ_MASK (BIT(NET_TX_SOFTIRQ)    | \
 			   BIT(NET_RX_SOFTIRQ)    | \
 			   BIT(BLOCK_SOFTIRQ)     | \
-			   BIT(IRQ_POLL_SOFTIRQ))
+			   BIT(IRQ_POLL_SOFTIRQ)  | \
+			   BIT(TASKLET_SOFTIRQ))
 
 /* map softirq index to softirq name. update 'softirq_to_name' in
  * kernel/softirq.c when adding a new softirq.