XML: Add a few missing requires

Selection of non contentious changes from #960. Also see #1426

Author: vdualb

xml/cl.xml

@@ -4417,6 +4417,18 @@ server's OpenCL/api-docs repository.
             <type name="CL/cl_version.h"/>
             <type name="CL/cl_platform.h"/>
         </require>
+        <require comment="API data types">
+            <type name="cl_char"/>
+            <type name="cl_uchar"/>
+            <type name="cl_short"/>
+            <type name="cl_ushort"/>
+            <type name="cl_int"/>
+            <type name="cl_uint"/>
+            <type name="cl_long"/>
+            <type name="cl_ulong"/>
+            <type name="cl_float"/>
+            <type name="cl_double"/>
+        </require>
         <require comment="API types">
             <type name="cl_platform_id"/>
             <type name="cl_device_id"/>
@@ -4498,6 +4510,32 @@ server's OpenCL/api-docs repository.
             <enum name="CL_DBL_MAX"/>
             <enum name="CL_DBL_MIN"/>
             <enum name="CL_DBL_EPSILON"/>
+            <enum name="CL_M_E"/>
+            <enum name="CL_M_LOG2E"/>
+            <enum name="CL_M_LOG10E"/>
+            <enum name="CL_M_LN2"/>
+            <enum name="CL_M_LN10"/>
+            <enum name="CL_M_PI"/>
+            <enum name="CL_M_PI_2"/>
+            <enum name="CL_M_PI_4"/>
+            <enum name="CL_M_1_PI"/>
+            <enum name="CL_M_2_PI"/>
+            <enum name="CL_M_2_SQRTPI"/>
+            <enum name="CL_M_SQRT2"/>
+            <enum name="CL_M_SQRT1_2"/>
+            <enum name="CL_M_E_F"/>
+            <enum name="CL_M_LOG2E_F"/>
+            <enum name="CL_M_LOG10E_F"/>
+            <enum name="CL_M_LN2_F"/>
+            <enum name="CL_M_LN10_F"/>
+            <enum name="CL_M_PI_F"/>
+            <enum name="CL_M_PI_2_F"/>
+            <enum name="CL_M_PI_4_F"/>
+            <enum name="CL_M_1_PI_F"/>
+            <enum name="CL_M_2_PI_F"/>
+            <enum name="CL_M_2_SQRTPI_F"/>
+            <enum name="CL_M_SQRT2_F"/>
+            <enum name="CL_M_SQRT1_2_F"/>
             <enum name="CL_NAN"/>
             <enum name="CL_HUGE_VALF"/>
             <enum name="CL_HUGE_VAL"/>
@@ -5711,6 +5749,7 @@ server's OpenCL/api-docs repository.
                 <type name="CL/cl_icd.h"/>
             </require>
             <require>
+                <type name="cl_icd_dispatch"/>
                 <type name="cl_layer_info"/>
                 <type name="cl_layer_api_version"/>
             </require>