patch ggml until ggml-org/ggml#1317

Author: tophyr

ports/ggml/fix-dequant_funcs-comp.diff

@@ -0,0 +1,19 @@
+diff --git a/src/ggml-vulkan/vulkan-shaders/dequant_funcs.comp b/src/ggml-vulkan/vulkan-shaders/dequant_funcs.comp
+index 0d9739d4..b880a729 100644
+--- a/src/ggml-vulkan/vulkan-shaders/dequant_funcs.comp
++++ b/src/ggml-vulkan/vulkan-shaders/dequant_funcs.comp
+@@ -442,8 +442,12 @@ vec2 get_dm(uint ib, uint a_offset) {
+ 
+ #if defined(DATA_A_IQ1_M)
+ vec2 get_dm(uint ib, uint a_offset) {
+-    const uint16_t[4] scales = data_a[a_offset + ib].scales;
+-    const u16vec4 s = u16vec4(scales[0], scales[1], scales[2], scales[3]) >> 12;
++    u16vec4 s = u16vec4(
++        data_a[a_offset + ib].scales[0],
++        data_a[a_offset + ib].scales[1],
++        data_a[a_offset + ib].scales[2],
++        data_a[a_offset + ib].scales[3]
++    ) >> 12;
+     const float d = float(unpackHalf2x16(s.x | (s.y << 4) | (s.z << 8) | (s.w << 12)).x);
+     return vec2(d, 0);
+ }

ports/ggml/portfile.cmake

@@ -8,6 +8,7 @@ vcpkg_from_github(
         cmake-config.diff
         relax-link-options.diff
         vulkan-shaders-gen.diff
+        fix-dequant_funcs-comp.diff
 )
 
 vcpkg_check_features(OUT_FEATURE_OPTIONS FEATURE_OPTIONS