rp2/cyw43_configport: Make sure only core0 executes a __WFI().

This commit executes __WFI() on core 0 only to avoid core1 locking up since
it doesn't enable any interrupts by default (except for `SIO_IRQ_PROC1`).
This fixes a lockup when calling `cyw43_do_ioctl` from core1.

Fixes issue adafruit#9597.

Author: iabdalkader

ports/rp2/cyw43_configport.h

@@ -47,8 +47,15 @@
 #define CYW43_THREAD_EXIT               MICROPY_PY_LWIP_EXIT
 #define CYW43_THREAD_LOCK_CHECK
 
-#define CYW43_SDPCM_SEND_COMMON_WAIT    __WFI();
-#define CYW43_DO_IOCTL_WAIT             __WFI();
+#define CYW43_SDPCM_SEND_COMMON_WAIT \
+    if (get_core_num() == 0) { \
+        __WFI(); \
+    } \
+
+#define CYW43_DO_IOCTL_WAIT \
+    if (get_core_num() == 0) { \
+        __WFI(); \
+    } \
 
 #define CYW43_ARRAY_SIZE(a)             MP_ARRAY_SIZE(a)