HID: zero unused PadState bits

src/core/hle/service/hid/hid.h

@@ -24,7 +24,7 @@ namespace HID {
  */
 struct PadState {
     union {
-        u32 hex;
+        u32 hex{};
 
         BitField<0, 1, u32> a;
         BitField<1, 1, u32> b;

src/core/hle/service/ir/ir_rst.cpp

@@ -18,7 +18,7 @@ namespace Service {
 namespace IR {
 
 union PadState {
-    u32_le hex;
+    u32_le hex{};
 
     BitField<14, 1, u32_le> zl;
     BitField<15, 1, u32_le> zr;