kernel: bump 5.15 to 5.15.32

Patches automatically rebased.

Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>

target/linux/ath79/patches-5.15/408-mtd-redboot_partition_scan.patch

@@ -19,7 +19,7 @@
  				return -EIO;
  			}
  			offset -= master->erasesize;
-@@ -108,10 +113,6 @@ nogood:
+@@ -108,10 +114,6 @@ nogood:
  				goto nogood;
  		}
  	}
@@ -30,7 +30,7 @@
  
  	pr_notice("Searching for RedBoot partition table in %s at offset 0x%lx\n",
  		  master->name, offset);
-@@ -183,6 +184,12 @@ nogood:
+@@ -183,6 +185,12 @@ nogood:
  	}
  	if (i == numslots) {
  		/* Didn't find it */