Takeyoshi Kikuchi 8571893435 arm: sama5: sam_serial: fix to compile with "UART Flow control enabled" on SAMA5D2.
SAMA5D2 has UART (TX/RX only) and FLEXCOM USART (with control pins).
UART has only TX/RX, so if I try to use flow control with FLEXCOM USART,
there is no register definition on the UART side and get a compilation error.

Signed-off-by: Takeyoshi Kikuchi <kikuchi@centurysys.co.jp>
2024-01-26 11:25:23 +08:00
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