Make libc_scudo always go first.

In addition, add Shared_libs to malloc_not_svelte.

Bug: 123689570

Test: Verified that libc_scudo is first wherever it is added.
Change-Id: Ibdc5dbd019a382630a727c270f846aa4446f8d99
Merged-In: Ibdc5dbd019a382630a727c270f846aa4446f8d99
diff --git a/android/variable.go b/android/variable.go
index aa8c804..56ca666 100644
--- a/android/variable.go
+++ b/android/variable.go
@@ -43,7 +43,8 @@
 		} `android:"arch_variant"`
 
 		Malloc_not_svelte struct {
-			Cflags []string `android:"arch_variant"`
+			Cflags      []string `android:"arch_variant"`
+			Shared_libs []string `android:"arch_variant"`
 		} `android:"arch_variant"`
 
 		Safestack struct {