Fix name to make checker hapy

Signed-off-by: Rich Sugarman <rsugarman@nvidia.com>

Author: rdsugarmannv

doc/SAI-Proposal-Global-PTP-Configuration.md

@@ -58,7 +58,7 @@ typedef enum _sai_switch_attr_t
      * @flags CREATE_AND_SET
      * @default SAI_PORT_PTP_MODE_NONE
      */
-    SAI_SWITCH_ATTR_PTP_MODE,
+    SAI_SWITCH_ATTR_PORT_PTP_MODE,
 
     // ... existing attributes ...
 } sai_switch_attr_t;
@@ -68,15 +68,15 @@ typedef enum _sai_switch_attr_t
 ```c
 // Set global PTP configuration at switch level
 sai_attribute_t attr;
-attr.id = SAI_SWITCH_ATTR_PTP_MODE;
+attr.id = SAI_SWITCH_ATTR_PORT_PTP_MODE;
 attr.value.s32 = SAI_PORT_PTP_MODE_SINGLE_STEP_TIMESTAMP;
 
 sai_status_t status = sai_switch_api->set_switch_attribute(
     switch_id,
     &attr);
 
 // Get global PTP configuration
-attr.id = SAI_SWITCH_ATTR_PTP_MODE;
+attr.id = SAI_SWITCH_ATTR_PORT_PTP_MODE;
 status = sai_switch_api->get_switch_attribute(
     switch_id,
     1,

inc/saiswitch.h

@@ -3207,7 +3207,7 @@ typedef enum _sai_switch_attr_t
      * @flags CREATE_AND_SET
      * @default SAI_PORT_PTP_MODE_NONE
      */
-    SAI_SWITCH_ATTR_PTP_MODE,
+    SAI_SWITCH_ATTR_PORT_PTP_MODE,
 
     /**
      * @brief End of attributes