Add missing CFI directives to ARM Quick entrypoints.

Test: Build ART
Change-Id: I16ef638b255fd4f6b084df67ef9462170c3c3548
diff --git a/runtime/arch/arm/quick_entrypoints_arm.S b/runtime/arch/arm/quick_entrypoints_arm.S
index b909bda..7e6e574 100644
--- a/runtime/arch/arm/quick_entrypoints_arm.S
+++ b/runtime/arch/arm/quick_entrypoints_arm.S
@@ -227,6 +227,7 @@
     .cfi_restore r1
     .cfi_restore r2
     .cfi_restore r3
+    .cfi_restore r4
     .cfi_restore r5
     .cfi_restore r6
     .cfi_restore r7
@@ -251,6 +252,7 @@
     .cfi_restore r1
     .cfi_restore r2
     .cfi_restore r3
+    .cfi_restore r4
     .cfi_restore r5
     .cfi_restore r6
     .cfi_restore r7