Update riscv64 minimum API level to FutureApiLevel

The Baklava codename is being added, so the minimum riscv64 API level
needs to be updated from VanillaIceCream to Baklava.  Unfortunately,
TARGET_RELEASE=next builds don't have the Baklava codename defined,
so use FutureApiLevel for now.

Bug: 374457207
Test: builds
Flag: EXEMPT bugfix
Ignore-AOSP-First: Baklava isn't in AOSP yet
Change-Id: I2f9969b96a88a9b86bcf4bb0acaa0b1f7f3735a5
diff --git a/cc/api_level.go b/cc/api_level.go
index 69a0d3a..a5571f3 100644
--- a/cc/api_level.go
+++ b/cc/api_level.go
@@ -31,11 +31,7 @@
 	case android.Arm64, android.X86_64:
 		return android.FirstLp64Version
 	case android.Riscv64:
-		apiLevel, err := android.ApiLevelFromUser(ctx, "VanillaIceCream")
-		if err != nil {
-			panic(err)
-		}
-		return apiLevel
+		return android.FutureApiLevel
 	default:
 		panic(fmt.Errorf("Unknown arch %q", arch))
 	}