kernel: bump 5.15 to 5.15.89

Removed upstreamed:
  ipq806x/patches-5.15/007-v6.3-ASoC-qcom-lpass-cpu-Fix-fallback-SD-line-index-handl.patch[1]

1. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.89&id=d4fa65960a9d0cb87a1102d47145675ceed7a4e6

All other patches automatically rebased.

Build system: x86_64
Build-tested: bcm2711/RPi4B, filogic/xiaomi_redmi-router-ax6000-ubootmod
Run-tested: bcm2711/RPi4B, filogic/xiaomi_redmi-router-ax6000-ubootmod

Signed-off-by: John Audia <therealgraysky@proton.me>

target/linux/generic/backport-5.15/020-v6.1-05-mm-multigenerational-lru-mm_struct-list.patch

@@ -329,7 +329,7 @@ Change-Id: I25d9eda8c6bdc7c3653b9f210a159d6c247c81e8
  	/* forking complete and child started to run, tell ptracer */
 --- a/kernel/sched/core.c
 +++ b/kernel/sched/core.c
-@@ -4978,6 +4978,7 @@ context_switch(struct rq *rq, struct tas
+@@ -5007,6 +5007,7 @@ context_switch(struct rq *rq, struct tas
  		 * finish_task_switch()'s mmdrop().
  		 */
  		switch_mm_irqs_off(prev->active_mm, next->mm, next);

target/linux/generic/hack-5.15/904-debloat_dma_buf.patch

@@ -72,7 +72,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
 +MODULE_LICENSE("GPL");
 --- a/kernel/sched/core.c
 +++ b/kernel/sched/core.c
-@@ -4184,6 +4184,7 @@ int wake_up_state(struct task_struct *p,
+@@ -4213,6 +4213,7 @@ int wake_up_state(struct task_struct *p,
  {
  	return try_to_wake_up(p, state, 0);
  }