Change bool, and string properties to *bool, and *string for cc

there's no use case for prepending/appending to bool, and string
properties within module struct. Declearing "*bool" and "*string" almost
cover everything user need.

I did see one case that user specify relative_install_path as
path prefix in cc_defaults, and concatenate with the one in real module
to get the final relative install path in Android.bp <bionic/tests/libs>.

Test: m -j checkbuild
Bug: b/68853585
Change-Id: If3a7a2689c3fc307aae136af6bc9c57f27a1e1a0
diff --git a/cc/vndk.go b/cc/vndk.go
index 860678d..03297df 100644
--- a/cc/vndk.go
+++ b/cc/vndk.go
@@ -85,7 +85,7 @@
 		// Non-VNDK modules (those installed to /vendor) can't depend on modules marked with
 		// vendor_available: false.
 		violation := false
-		if lib, ok := to.linker.(*llndkStubDecorator); ok && !lib.Properties.Vendor_available {
+		if lib, ok := to.linker.(*llndkStubDecorator); ok && !Bool(lib.Properties.Vendor_available) {
 			violation = true
 		} else {
 			if _, ok := to.linker.(libraryInterface); ok && to.VendorProperties.Vendor_available != nil && !Bool(to.VendorProperties.Vendor_available) {
@@ -138,7 +138,7 @@
 				llndkLibraries = append(llndkLibraries, name)
 				sort.Strings(llndkLibraries)
 			}
-			if !lib.Properties.Vendor_available {
+			if !Bool(lib.Properties.Vendor_available) {
 				if !inList(name, vndkPrivateLibraries) {
 					vndkPrivateLibraries = append(vndkPrivateLibraries, name)
 					sort.Strings(vndkPrivateLibraries)