May 2022 Security update

* raviole gki_kernel_tag handled manually this month,
  TODO: Script

Ref:
* https://groups.google.com/g/android-building/c/GoMawyG2l94/m/zB2a0UXCAgAJ

Change-Id: I236572036790189e9e6451ff8ee9a0e207d5f99f
diff --git a/vars/common b/vars/common
index 44eae97..8a3a1d5 100644
--- a/vars/common
+++ b/vars/common
@@ -2,10 +2,10 @@
 readonly prev_lineageos_branch=lineage-19.0
 readonly lineageos_branch=lineage-19.1
 
-readonly prev_common_aosp_tag=android-12.1.0_r2 # Mar 2022, Pixel 6
-readonly common_aosp_tag=android-12.1.0_r4 # Apr 2022, Pixel 6
+readonly prev_common_aosp_tag=android-12.1.0_r4 # Apr 2022, Pixel 6
+readonly common_aosp_tag=android-12.1.0_r5 # May 2022, Pixels 3a - 6
 
-readonly prev_common_aosp_build_id=SP2A.220305.013.A3 # Mar 2022, Pixel 6
-readonly common_aosp_build_id=SP2A.220405.004 # Apr 2022, Pixel 6
+readonly prev_common_aosp_build_id=SP2A.220405.004 # Apr 2022, Pixel 6
+readonly common_aosp_build_id=SP2A.220505.002 # May 2022, Pixels 3a - 6
 
-readonly topic=S_asb_2022-04
+readonly topic=S_asb_2022-05