Apply changes needed for USB MSC and DaynaPORT

Made nesaccery changes to tsub_config.h and files that support the
cyw43 library for DaynaPORT support.

Author: morio

.gitmodules

@@ -3,7 +3,7 @@
 	url = https://github.com/earlephilhower/ArduinoCore-API.git
 [submodule "pico-sdk"]
 	path = pico-sdk
-	url = https://github.com/raspberrypi/pico-sdk.git
+	url = https://github.com/rabbitholecomputing/pico-sdk.git
 [submodule "system/pyserial"]
 	path = tools/pyserial
 	url = https://github.com/pyserial/pyserial.git

include/rp2040/tusb_config.h

@@ -79,7 +79,7 @@
 #define CFG_TUD_CDC_RX_BUFSIZE  (256)
 #define CFG_TUD_CDC_TX_BUFSIZE  (256)
 
-#define CFG_TUD_MSC_EP_BUFSIZE  (64)
+#define CFG_TUD_MSC_EP_BUFSIZE  (1024*4)
 
 // HID buffer size Should be sufficient to hold ID (if any) + Data
 #define CFG_TUD_HID_EP_BUFSIZE  (64)

lib/core_wrap.txt

@@ -61,11 +61,4 @@
 -Wl,--wrap=netif_add
 -Wl,--wrap=netif_remove
 
--Wl,--wrap=cyw43_cb_process_ethernet
--Wl,--wrap=cyw43_cb_tcpip_set_link_up
--Wl,--wrap=cyw43_cb_tcpip_set_link_down
--Wl,--wrap=cyw43_tcpip_link_status
--Wl,--wrap=cyw43_cb_tcpip_init
--Wl,--wrap=cyw43_cb_tcpip_deinit
-
 -Wl,--wrap=__stack_chk_fail

lib/rp2040/libipv4-big.a

@@ -79,7 +79,7 @@
 #define CFG_TUD_CDC_RX_BUFSIZE  (256)
 #define CFG_TUD_CDC_TX_BUFSIZE  (256)
 
-#define CFG_TUD_MSC_EP_BUFSIZE  (64)
+#define CFG_TUD_MSC_EP_BUFSIZE  (1024*4)
 
 // HID buffer size Should be sufficient to hold ID (if any) + Data
 #define CFG_TUD_HID_EP_BUFSIZE  (64)

lib/rp2040/libipv4-bt-big.a

@@ -369,7 +369,8 @@ def configure_usb_flags(cpp_defines):
 def configure_network_flags(cpp_defines):
     env.Append(CPPDEFINES=[
         ("PICO_CYW43_ARCH_THREADSAFE_BACKGROUND", 1),
-        ("CYW43_LWIP", 1),
+# This needs to be removed for DaynaPORT emulators
+#        ("CYW43_LWIP", 1),
         ("CYW43_PIO_CLOCK_DIV_DYNAMIC", 1),
         ("LWIP_IPV4", 1),
         ("LWIP_IGMP", 1),