arm64: dts: renesas: beacon: Fix USB extal reference

stable inclusion
from stable-5.10.59
commit e0dd4a0ab072faf1bb882f1396159db9247baf10
bugzilla: 176988 https://gitee.com/openeuler/kernel/issues/I4EAR4

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=e0dd4a0ab072faf1bb882f1396159db9247baf10



--------------------------------

commit 56bc5449 upstream

The USB extal clock reference isn't associated to a crystal, it's
associated to a programmable clock, so remove the extal reference,
add the usb2_clksel.  Since usb_extal is referenced by the versaclock,
reference it here so the usb2_clksel can get the proper clock speed
of 50MHz.

Signed-off-by: Adam Ford <aford173@gmail.com>
Link: https://lore.kernel.org/r/20210513114617.30191-1-aford173@gmail.com


Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Chen Jun <chenjun102@huawei.com>
Acked-by: Weilong Chen <chenweilong@huawei.com>
Signed-off-by: Chen Jun <chenjun102@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>