kernel: bump 5.15 to 5.15.43

No patches needed rebasing.

Signed-off-by: Rui Salvaterra <[email protected]>

include/kernel-5.15

@@ -1,2 +1,2 @@
-LINUX_VERSION-5.15 = .42
-LINUX_KERNEL_HASH-5.15.42 = 5ecd47a9f663368f005f74d24c8de4ffd93007b675ddf342e2c6db956bf82560
+LINUX_VERSION-5.15 = .43
+LINUX_KERNEL_HASH-5.15.43 = 064b913a9d58773a85cafa62f2a2f9031aeee724d7e41b66631037d9a6571c12