Merge bitcoin/bitcoin#22123: depends: Fix qt.mk for mac arm64

3b36395 depends: Fix qt.mk for mac arm64 (João Barbosa)

Pull request description:

  With f16d4cd `depends/config.guess` gives `aarch64-apple-darwin20.3.0` where before would give `arm-apple-darwin20.3.0`. Fix `qt.mk` accordingly.

ACKs for top commit:
  hebasto:
    ACK 3b36395, I have reviewed the code and it looks OK, I agree it can be merged.
  fanquake:
    ACK 3b36395

Tree-SHA512: bd20402d0a6e9a5bb652198de189cf2b4f3f76fd03d0cba8c4d657c60b8a088cf3532efe6c1efbbedd94c00a155e6d180b77f1cd8bc24e0e35764839e8b77e30

Author: fanquake

depends/packages/qt.mk

@@ -126,7 +126,7 @@ $(package)_config_opts_darwin += -device-option XCODE_VERSION=$(XCODE_VERSION)
 endif
 
 # for macOS on Apple Silicon (ARM) see https://bugreports.qt.io/browse/QTBUG-85279
-$(package)_config_opts_arm_darwin += -device-option QMAKE_APPLE_DEVICE_ARCHS=arm64
+$(package)_config_opts_aarch64_darwin += -device-option QMAKE_APPLE_DEVICE_ARCHS=arm64
 
 $(package)_config_opts_linux = -qt-xcb
 $(package)_config_opts_linux += -no-xcb-xlib