[Edgecore][device][platform] Enhance fpga driver about eeprom init sy…

…sfs size create.

Detail:
  When 400G xcvr plugin, fpga need to get support-pagable info from xcvr:
  If get info failed, do not create 256 bytes. Because this will let xcvr cannot get page1~page0xff's data.
  Enhance method is create 32,896 bytes( (1+256)*128 ) when get info failed.

Signed-off-by: michael_shih <michael_shih@edge-core.com>

platform/broadcom/sonic-platform-modules-accton/as9736-64d/modules/accton_as9736_64d_fpga.c

@@ -2079,8 +2079,17 @@ static int check_qsfp_eeprom_pageable(struct bin_attribute *eeprom)
 
     pdata = eeprom->private;
 
-    if( fpga_i2c_ready_to_read(eeprom, EEPROM_LOWER_PAGE, pdata->i2c_slave_addr) != 1) {
-        return ret;
+    ret = fpga_i2c_ready_to_read(eeprom, EEPROM_LOWER_PAGE, pdata->i2c_slave_addr);
+
+    if(ret != 1) {
+        /* If user space code create port_eeprom sysfs when 400G insert.
+         * FPGA FW can't handle data quickly. Status code (ret) is 2 (busy).
+         * We let default case to support pageable.
+         * PS:This fix if 400G try read bigger than 256 bytes data. But sysfs only is 256 bytes
+         */
+        pdata->pageable = 1; /*This flag need to set 1, otherwise page-0 data can not get*/
+
+        return pdata->pageable;
     }
 
     read_status = ioread32(pdata->data_base_addr + (pdata->i2c_rtc_read_data));