Update rp2350.rst - FreeRTOS support added

Author: earlephilhower

docs/rp2350.rst

@@ -7,7 +7,7 @@ is supported by the core with some minor caveats:
 * PSRAM is supported via a new ``pmalloc`` call and ``PSRAM`` variable decorator.
 * Both RP2350A and RP2350B (48 GPIOs) are supported.
 * Only ARM mode is available.  For RISC-V (Hazard3), please use the raw SDK.
-* FreeRTOS and OTA are not yet supported.
+* OTA is not yet supported.
 
 P2350-E9 Errata ("Increased leakage current on Bank 0 GPIO when pad input is enabled")
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