Added initial BL61X and BL808 support, some chip changes

lib/chip/blisp_chip_bl60x.c

@@ -5,6 +5,7 @@ struct blisp_chip blisp_chip_bl60x = {
     .type = BLISP_CHIP_BL60X,
     .type_str = "bl60x",
     .usb_isp_available = false,
-    .default_eflash_loader_xtal = "40m",
+    .default_xtal = "40m",
     .handshake_byte_multiplier = 0.006f,
+    .needs_eflash_loader = true
 };

lib/chip/blisp_chip_bl61x.c

@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: MIT
+#include "blisp.h"
+
+struct blisp_chip blisp_chip_bl61x = {
+    .type = BLISP_CHIP_BL61X,
+    .type_str = "bl808",
+    .usb_isp_available = true,
+    .default_xtal = "-", // ?
+    .handshake_byte_multiplier = 0.003f,
+    .needs_eflash_loader = false
+};

lib/chip/blisp_chip_bl70x.c

@@ -5,6 +5,7 @@ struct blisp_chip blisp_chip_bl70x = {
     .type = BLISP_CHIP_BL70X,
     .type_str = "bl70x",
     .usb_isp_available = true,
-    .default_eflash_loader_xtal = "32m",
+    .default_xtal = "32m",
     .handshake_byte_multiplier = 0.003f,
+    .needs_eflash_loader = true
 };

lib/chip/blisp_chip_bl808.c

@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: MIT
+#include "blisp.h"
+
+struct blisp_chip blisp_chip_bl808 = {
+    .type = BLISP_CHIP_BL808,
+    .type_str = "bl808",
+    .usb_isp_available = true, // TODO: Only for BL808D :-(
+    .default_xtal = "-", // ?
+    .handshake_byte_multiplier = 0.003f,
+    .needs_eflash_loader = false
+};