increase stack size for access to sdcard

targets/grandcentral-m4.json

@@ -5,5 +5,6 @@
     "flash-method": "msd",
     "msd-volume-name": "GCM4BOOT",
     "msd-firmware-name": "firmware.uf2",
-    "openocd-interface": "jlink"
+    "openocd-interface": "jlink",
+    "default-stack-size": 2048
 }

targets/p1am-100.json

@@ -2,5 +2,6 @@
     "inherits": ["atsamd21g18a"],
     "build-tags": ["sam", "atsamd21g18a", "p1am_100"],
     "flash-command": "bossac -d -i -e -w -v -R --port={port} --offset=0x2000 {bin}",
-    "flash-1200-bps-reset": "true"
+    "flash-1200-bps-reset": "true",
+    "default-stack-size": 2048
 }

targets/pygamer.json

@@ -4,5 +4,6 @@
     "flash-1200-bps-reset": "true",
     "flash-method": "msd",
     "msd-volume-name": "PYGAMERBOOT",
-    "msd-firmware-name": "arcade.uf2"
+    "msd-firmware-name": "arcade.uf2",
+    "default-stack-size": 2048
 }

targets/pyportal.json

@@ -4,5 +4,6 @@
     "flash-1200-bps-reset": "true",
     "flash-method": "msd",
     "msd-volume-name": "PORTALBOOT",
-    "msd-firmware-name": "firmware.uf2"
+    "msd-firmware-name": "firmware.uf2",
+    "default-stack-size": 2048
 }

targets/wioterminal.json

@@ -4,5 +4,6 @@
     "flash-1200-bps-reset": "true",
     "flash-method": "msd",
     "msd-volume-name": "Arduino",
-    "msd-firmware-name": "firmware.uf2"
+    "msd-firmware-name": "firmware.uf2",
+    "default-stack-size": 2048
 }