Hide mutated variant in non-make builds.

This CL hides (using Module.Properties.PreventInstall) either the
sanitized or stock variant for non-make embedded builds (based on
whether a sanitizer is enabled or not) so we don't have duplicate
rules for installing the same target.

Bug: 30227045
Test: OUT_DIR=out build/soong/scripts/build-ndk-prebuilts.sh # no
longer generates a duplicate build error.

Change-Id: I0b2dbb0afd5d426b32da67f951e2a4f9fbb3f3b9
diff --git a/cc/sanitize.go b/cc/sanitize.go
index 53de14b..ea6a33e 100644
--- a/cc/sanitize.go
+++ b/cc/sanitize.go
@@ -574,22 +574,22 @@
 						modules[1].(*Module).sanitize.Properties.InSanitizerDir = true
 						modules[1].(*Module).sanitize.SetSanitizer(cfi, false)
 					}
-				} else {
+				}
+				if mctx.AConfig().EmbeddedInMake() && !mctx.Device() {
+					if isSanitizerEnabled {
+						modules[0].(*Module).Properties.HideFromMake = true
+					} else {
+						modules[1].(*Module).Properties.HideFromMake = true
+					}
+				}
+				if !mctx.AConfig().EmbeddedInMake() || !mctx.Device() {
 					if isSanitizerEnabled {
 						modules[0].(*Module).Properties.PreventInstall = true
 					} else {
 						modules[1].(*Module).Properties.PreventInstall = true
 					}
 				}
-				if mctx.AConfig().EmbeddedInMake() {
-					if !mctx.Device() {
-						if isSanitizerEnabled {
-							modules[0].(*Module).Properties.HideFromMake = true
-						} else {
-							modules[1].(*Module).Properties.HideFromMake = true
-						}
-					}
-				}
+
 			}
 			c.sanitize.Properties.SanitizeDep = false
 		}