Fix PNOR download size

kestrel/src/webportal.c

@@ -77,7 +77,7 @@ size_t embedded_file_fpga_firmware_raw_length = 0x800000;
 uint8_t* embedded_file_bmc_firmware_raw_pointer = (uint8_t*)((uintptr_t)BMCSPIFLASH_BASE + 0x800000);
 size_t embedded_file_bmc_firmware_raw_length = 0x400000;
 uint8_t* embedded_file_pnor_firmware_raw_pointer = (uint8_t*)((uintptr_t)HOSTSPIFLASH_BASE);
-size_t embedded_file_pnor_firmware_raw_length = 0x400000;
+size_t embedded_file_pnor_firmware_raw_length = 0x4000000;
 
 KESTREL_WEBSERVICE_DEFINE_PAGE_HANDLER(index_html, "text/html", "Kestrel SoftBMC")
 KESTREL_WEBSERVICE_DEFINE_FILE_HANDLER(style_css, "text/css")