Support recovery and recovery_available

`recovery: true` installs a module to the recovery partition.
`recovery_available: true` makes a module to be available to other
`recovery:true` or `recovery_available: true` modules.

These to are very similar to vendor, vendor_available properties, except
for the target partition.

Bug: 67916654
Bug: 64960723
Test: m -j, toybox_recovery is installed to the recovery/root/sbin
Change-Id: Iaebe0593de16c69fa70de251a61f4d018a251509

android/module.go

@@ -124,6 +124,7 @@ type ModuleContext interface {
 
 	InstallInData() bool
 	InstallInSanitizerDir() bool
+	InstallInRecovery() bool
 
 	RequiredModuleNames() []string
 
@@ -176,6 +177,7 @@ type Module interface {
 	Target() Target
 	InstallInData() bool
 	InstallInSanitizerDir() bool
+	InstallInRecovery() bool
 	SkipInstall()
 	ExportedToMake() bool
 
@@ -237,6 +239,9 @@ type commonProperties struct {
 	// /system/product if product partition does not exist).
 	Product_specific *bool
 
+	// Whether this module is installed to recovery partition
+	Recovery *bool
+
 	// init.rc files to be installed if this module is installed
 	Init_rc []string
 
@@ -560,6 +565,10 @@ func (p *ModuleBase) InstallInSanitizerDir() bool {
 	return false
 }
 
+func (p *ModuleBase) InstallInRecovery() bool {
+	return Bool(p.commonProperties.Recovery)
+}
+
 func (a *ModuleBase) generateModuleTarget(ctx ModuleContext) {
 	allInstalledFiles := Paths{}
 	allCheckbuildFiles := Paths{}
@@ -1008,6 +1017,10 @@ func (a *androidModuleContext) InstallInSanitizerDir() bool {
 	return a.module.InstallInSanitizerDir()
 }
 
+func (a *androidModuleContext) InstallInRecovery() bool {
+	return a.module.InstallInRecovery()
+}
+
 func (a *androidModuleContext) skipInstall(fullInstallPath OutputPath) bool {
 	if a.module.base().commonProperties.SkipInstall {
 		return true