Generate META/apexkeys.txt

This file contains information about public/private keys of
_installed_ apexes

Details
- In GenerateAndroidBuildActions of apexBundle, prebuiltApex, apexSet,
  set a provider with the filepath of the apex's key information
- In GenerateAndroidBuildActions of androidDevice, iterate over
  `allInstalledModules`. If a module has a provider with ApexKeyInfo, it
will be concatenated to META/apexkeys.txt

Test: verified that META/apexkeys.txt is identical between make and
soong
Bug: 388633394
Change-Id: I7ac40839c0dfb6a7efabad6a8ff51f30ed393b68

Change-Id: I97c8cf82186ab47ed3ff2a647bf592a96a53b5e4

1 files changed, 2 insertions, 0 deletions

diff --git a/apex/apex.go b/apex/apex.go
index 4dd3d4cc0..bda5f2f2a 100644
--- a/apex/apex.go
+++ b/apex/apex.go
@@ -2263,6 +2263,8 @@ func (a *apexBundle) GenerateAndroidBuildActions(ctx android.ModuleContext) {
 		FlatListPath: a.FlatListPath(),
 		Updatable:    a.Updatable(),
 	})
+
+	android.SetProvider(ctx, filesystem.ApexKeyPathInfoProvider, filesystem.ApexKeyPathInfo{a.apexKeysPath})
 }
 
 // Set prebuiltInfoProvider. This will be used by `apex_prebuiltinfo_singleton` to print out a metadata file