Support memtag sanitizer.

Bug: 295173102
Test: local unit tests
Change-Id: Ib8cd82cd3989d9c120255e149473d8ec00f100f5
diff --git a/bazel/configurability.go b/bazel/configurability.go
index aa58fdc..1fe8442 100644
--- a/bazel/configurability.go
+++ b/bazel/configurability.go
@@ -39,7 +39,7 @@
 
 	// Targets in arch.go
 	osArchAndroidArm        = "android_arm"
-	osArchAndroidArm64      = "android_arm64"
+	OsArchAndroidArm64      = "android_arm64"
 	osArchAndroidRiscv64    = "android_riscv64"
 	osArchAndroidX86        = "android_x86"
 	osArchAndroidX86_64     = "android_x86_64"
@@ -170,7 +170,7 @@
 
 	platformOsArchMap = map[string]string{
 		osArchAndroidArm:           "//build/bazel/platforms/os_arch:android_arm",
-		osArchAndroidArm64:         "//build/bazel/platforms/os_arch:android_arm64",
+		OsArchAndroidArm64:         "//build/bazel/platforms/os_arch:android_arm64",
 		osArchAndroidRiscv64:       "//build/bazel/platforms/os_arch:android_riscv64",
 		osArchAndroidX86:           "//build/bazel/platforms/os_arch:android_x86",
 		osArchAndroidX86_64:        "//build/bazel/platforms/os_arch:android_x86_64",