hw/arm/aspeed: ast2600-evb: Use w25q512jv flash model

The ast2600-evb machine model is using the "mx66u51235f" flash model,
which has issues with recent Linux kernels (6.15+) when reading SFDP
data.

Change the flash model to "w25q512jv", which is the model present on
some ast2600a3 EVB board and is known to work correctly with recent
kernels. Adjust the corresponding qtest to reflect the new JEDEC ID of
the w25q512jv flash.

Reviewed-by: Jamin Lin <jamin_lin@aspeedtech.com>
Link: https://lore.kernel.org/qemu-devel/20251016212437.1046135-1-clg@redhat.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>

hw/arm/aspeed.c

@@ -1592,8 +1592,8 @@ static void aspeed_machine_ast2600_evb_class_init(ObjectClass *oc,
     amc->soc_name  = "ast2600-a3";
     amc->hw_strap1 = AST2600_EVB_HW_STRAP1;
     amc->hw_strap2 = AST2600_EVB_HW_STRAP2;
-    amc->fmc_model = "mx66u51235f";
-    amc->spi_model = "mx66u51235f";
+    amc->fmc_model = "w25q512jv";
+    amc->spi_model = "w25q512jv";
     amc->num_cs    = 1;
     amc->macs_mask = ASPEED_MAC0_ON | ASPEED_MAC1_ON | ASPEED_MAC2_ON |
                      ASPEED_MAC3_ON;

tests/qtest/aspeed_smc-test.c

@@ -134,10 +134,10 @@ static void test_ast2600_evb(AspeedSMCTestData *data)
                           "-drive file=%s,format=raw,if=mtd",
                           data->tmp_path);
 
-    /* fmc cs0 with mx66u51235f flash */
+    /* fmc cs0 with w25q512jv flash */
     data->flash_base = 0x20000000;
     data->spi_base = 0x1E620000;
-    data->jedec_id = 0xc2253a;
+    data->jedec_id = 0xef4020;
     data->cs = 0;
     data->node = "/machine/soc/fmc/ssi.0/child[0]";
     /* beyond 16MB */