Add whole_static_libs to non-svelte configs.

This is to support enabling scudo only for non-svelte configs.

Also, add exclude_static_libs to allow removing the jemalloc libs.

Bug: 137795072

Test: Verified that a svelte and non-svelte config can use this method
Test: to properly choose between scudo and jemalloc.

Change-Id: Iec6bfe159f8491138e93dde1d225a8c874c7ce31
diff --git a/android/variable.go b/android/variable.go
index 7473491..c5a6fb3 100644
--- a/android/variable.go
+++ b/android/variable.go
@@ -43,8 +43,10 @@
 		} `android:"arch_variant"`
 
 		Malloc_not_svelte struct {
-			Cflags      []string `android:"arch_variant"`
-			Shared_libs []string `android:"arch_variant"`
+			Cflags              []string `android:"arch_variant"`
+			Shared_libs         []string `android:"arch_variant"`
+			Whole_static_libs   []string `android:"arch_variant"`
+			Exclude_static_libs []string `android:"arch_variant"`
 		} `android:"arch_variant"`
 
 		Safestack struct {