Use VkFormat to pass Vulkan formats

For better type safety.

Bug: 131176903
Test: make
Change-Id: Ic32f43b4ce3d8a609e70bb8021b5560aa97493ef
Merged-In: Id7c67e234ec96b01bbf53bae257c1b0a355e2d0a
Signed-off-by: Roman Kiryanov <rkir@google.com>

system/vulkan_enc/vk_format_info.h

@@ -58,7 +58,7 @@ vk_format_from_android(unsigned android_format)
 }
 
 static inline unsigned
-android_format_from_vk(unsigned vk_format)
+android_format_from_vk(VkFormat vk_format)
 {
    switch (vk_format) {
    case VK_FORMAT_R8G8B8A8_UNORM: