Add support for 2x2 matrices

src/gpu/vk/GrVkProgramDataManager.h

Index: src/gpu/vk/GrVkProgramDataManager.h
diff --git a/src/gpu/vk/GrVkProgramDataManager.h b/src/gpu/vk/GrVkProgramDataManager.h
index 800625902a871c7922d48471d3e1c0eff6653ef5..3baef0a7428bbca7a51d2b65a520a60d85558008 100644
--- a/src/gpu/vk/GrVkProgramDataManager.h
+++ b/src/gpu/vk/GrVkProgramDataManager.h
@@ -33,8 +33,10 @@ public:
     void set4fv(UniformHandle, int arrayCount, const float v[]) const override;
     // matrices are column-major, the first two upload a single matrix, the latter two upload
     // arrayCount matrices into a uniform array.
+    void setMatrix2f(UniformHandle, const float matrix[]) const override;
     void setMatrix3f(UniformHandle, const float matrix[]) const override;
     void setMatrix4f(UniformHandle, const float matrix[]) const override;
+    void setMatrix2fv(UniformHandle, int arrayCount, const float matrices[]) const override;
     void setMatrix3fv(UniformHandle, int arrayCount, const float matrices[]) const override;
     void setMatrix4fv(UniformHandle, int arrayCount, const float matrices[]) const override;
 
@@ -58,6 +60,9 @@ private:
         );
     };
 
+    template<int N> inline void setMatrices(UniformHandle, int arrayCount,
+                                            const float matrices[]) const;
+
     uint32_t fVertexUniformSize;
     uint32_t fFragmentUniformSize;