opencl: add flattened Q4_K mv and general Q4_K mm (ggml-org#20773)

Author: shaofeiqi

ggml/src/ggml-opencl/CMakeLists.txt

@@ -89,6 +89,7 @@ set(GGML_OPENCL_KERNELS
     mul_mv_q4_1_f32
     mul_mv_q4_1_f32_flat
     mul_mv_q4_k_f32
+    mul_mv_q4_k_f32_flat
     mul_mv_q6_k_f32
     mul_mv_q6_k_f32_flat
     mul_mv_q8_0_f32
@@ -107,6 +108,7 @@ set(GGML_OPENCL_KERNELS
     mul_mm_q4_0_f32_l4_lm
     mul_mm_q4_1_f32_l4_lm
     mul_mm_q8_0_f32_l4_lm
+    mul_mm_q4_k_f32_l4_lm
     mul_mm_q6_k_f32_l4_lm
     mul_mm_q8_0_f32_8x4
     gemv_noshuffle_q4_1_f32