add support for MT25QU512 flash

src/spiFlashdb.hpp

@@ -322,6 +322,22 @@ static std::map <uint32_t, flash_t> flash_list = {
 		.quad_mask = 0,
 		.global_lock = false,
 	}},
+	{0x20bb20, {
+		.manufacturer = "micron",
+		.model = "MT25QU512",
+		.nr_sector = 1024,
+		.sector_erase = true,
+		.subsector_erase = true,
+		.has_extended = true,
+		.tb_otp = false,
+		.tb_offset = (1 << 5),
+		.tb_register = STATR,
+		.bp_len = 4,
+		.bp_offset = {(1 << 2), (1 << 3), (1 << 4), (1 << 6)},
+		.quad_register = NONER,
+		.quad_mask = 0,
+		.global_lock = false,
+	}},
 	{0x20bb21, {
 		.manufacturer = "micron",
 		.model = "MT25QU01G",