rockchip: increase the number of serial ports for rk35xx

The RK356x/RK3588 SoCs support up to 10 serial ports.

Signed-off-by: Tianling Shen <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/19917
(cherry picked from commit 672e45e69f09f62f9b4237b368d976fa993dcd0f)
Link: https://github.com/openwrt/openwrt/pull/19988
Signed-off-by: Hauke Mehrtens <[email protected]>

target/linux/rockchip/armv8/config-6.6

@@ -603,10 +603,10 @@ CONFIG_SERIAL_8250_DWLIB=y
 CONFIG_SERIAL_8250_EXAR=y
 CONFIG_SERIAL_8250_EXTENDED=y
 CONFIG_SERIAL_8250_FSL=y
-CONFIG_SERIAL_8250_NR_UARTS=4
+CONFIG_SERIAL_8250_NR_UARTS=10
 CONFIG_SERIAL_8250_PCI=y
 CONFIG_SERIAL_8250_PCILIB=y
-CONFIG_SERIAL_8250_RUNTIME_UARTS=4
+CONFIG_SERIAL_8250_RUNTIME_UARTS=10
 CONFIG_SERIAL_8250_SHARE_IRQ=y
 CONFIG_SERIAL_AMBA_PL011=y
 CONFIG_SERIAL_AMBA_PL011_CONSOLE=y