gfxstream: fix meson build

Add for CONFIG_AEMU statements and missing file.

BUG=317816825
TEST=compile

Change-Id: I2c8b373734998f53c22ef5dfc790f927a427e250
diff --git a/host/vulkan/meson.build b/host/vulkan/meson.build
index 5ecfaed..4ffd330 100644
--- a/host/vulkan/meson.build
+++ b/host/vulkan/meson.build
@@ -22,6 +22,7 @@
   'VkAndroidNativeBuffer.cpp',
   'VkCommonOperations.cpp',
   'VkDecoder.cpp',
+  'VkEmulatedPhysicalDeviceMemory.cpp',
   'VkDecoderGlobalState.cpp',
   'VkDecoderSnapshot.cpp',
   'VkDecoderSnapshotUtils.cpp',