Fix blend flags properly

Author: Filoppi

pcsx2/GS/Renderers/Common/GSDevice.h

@@ -278,7 +278,7 @@ struct HWBlend
 	typedef u8 BlendOp; /*GSDevice::BlendOp*/
 	typedef u8 BlendFactor; /*GSDevice::BlendFactor*/
 
-	u16 flags;
+	u32 flags; /*HWBlendFlags*/
 	BlendOp op;
 	BlendFactor src, dst;
 };
@@ -1082,7 +1082,7 @@ class GSDevice : public GSAlignedClass<32>
 	// Convert the GS blend equations to HW blend factors/ops
 	// Index is computed as ((((A * 3 + B) * 3) + C) * 3) + D. A, B, C, D taken from ALPHA register.
 	__ri static HWBlend GetBlend(u32 index) { return m_blendMap[index]; }
-	__ri static u16 GetBlendFlags(u32 index) { return m_blendMap[index].flags; }
+	__ri static auto GetBlendFlags(u32 index) { return m_blendMap[index].flags; }
 };
 
 template <>

pcsx2/GS/Renderers/HW/GSRendererHW.cpp

@@ -5216,7 +5216,7 @@ void GSRendererHW::EmulateBlending(int rt_alpha_min, int rt_alpha_max, const boo
 
 	const u8 blend_index = static_cast<u8>(((m_conf.ps.blend_a * 3 + m_conf.ps.blend_b) * 3 + m_conf.ps.blend_c) * 3 + m_conf.ps.blend_d);
 	HWBlend blend = GSDevice::GetBlend(blend_index);
-	const int blend_flag = blend.flags;
+	const auto blend_flag = blend.flags;
 
 	// Re set alpha, it was modified, must be done after index calculation
 	if (blend_ad_alpha_masked)