Add support for ARMv9.3-A and ARMv9.4-A.

Bug: 364383722
Test: presubmit, internal build with the new arch variant
Change-Id: I151d7f5953cbec10e64887184a04d9121cde63e9
diff --git a/android/arch_list.go b/android/arch_list.go
index 389f194..8659549 100644
--- a/android/arch_list.go
+++ b/android/arch_list.go
@@ -27,6 +27,8 @@
 		"armv8-2a-dotprod",
 		"armv9-a",
 		"armv9-2a",
+		"armv9-3a",
+		"armv9-4a",
 	},
 	X86: {
 		"alderlake",
@@ -151,6 +153,12 @@
 		"armv9-2a": {
 			"dotprod",
 		},
+		"armv9-3a": {
+			"dotprod",
+		},
+		"armv9-4a": {
+			"dotprod",
+		},
 	},
 	X86: {
 		"alderlake": {
diff --git a/cc/config/arm64_device.go b/cc/config/arm64_device.go
index 45b1580..25edb79 100644
--- a/cc/config/arm64_device.go
+++ b/cc/config/arm64_device.go
@@ -53,6 +53,16 @@
 			"-mbranch-protection=standard",
 			"-fno-stack-protector",
 		},
+		"armv9-3a": []string{
+			"-march=armv9.3-a",
+			"-mbranch-protection=standard",
+			"-fno-stack-protector",
+		},
+		"armv9-4a": []string{
+			"-march=armv9.4-a",
+			"-mbranch-protection=standard",
+			"-fno-stack-protector",
+		},
 	}
 
 	arm64Ldflags = []string{
diff --git a/rust/config/arm64_device.go b/rust/config/arm64_device.go
index 94a4457..efcd56a 100644
--- a/rust/config/arm64_device.go
+++ b/rust/config/arm64_device.go
@@ -45,6 +45,14 @@
 			"-Z branch-protection=bti,pac-ret",
 			"-Z stack-protector=none",
 		},
+		"armv9-3a": []string{
+			"-Z branch-protection=bti,pac-ret",
+			"-Z stack-protector=none",
+		},
+		"armv9-4a": []string{
+			"-Z branch-protection=bti,pac-ret",
+			"-Z stack-protector=none",
+		},
 	}
 )