Update kernel to builds 7914766 am: 5efed12c2c am: 9e0c271e68 am: 432ddf8a8d

Original change: https://android-review.googlesource.com/c/kernel/prebuilts/5.10/arm64/+/1891182

Change-Id: I79ad572aa975c4e12026a6d6b038ce6678b52869