package/libabseil-cpp: make check-package happy

The "depends on" must be after the "default" properties.

Fixes:

  https://gitlab.com/buildroot.org/buildroot/-/jobs/677751258

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/libabseil-cpp/Config.in

@@ -2,7 +2,6 @@
 # architectures that are supported, and for which ucontext is used.
 config BR2_PACKAGE_LIBABSEIL_CPP_ARCH_SUPPORTS
 	bool
-	depends on BR2_TOOLCHAIN_HAS_UCONTEXT
 	default y if BR2_aarch64 || BR2_aarch64_be
 	default y if BR2_arm || BR2_armeb
 	default y if BR2_i386
@@ -10,6 +9,7 @@ config BR2_PACKAGE_LIBABSEIL_CPP_ARCH_SUPPORTS
 	default y if BR2_powerpc || BR2_powerpc64 || BR2_powerpc64le
 	default y if BR2_riscv
 	default y if BR2_x86_64
+	depends on BR2_TOOLCHAIN_HAS_UCONTEXT
 
 config BR2_PACKAGE_LIBABSEIL_CPP
 	bool "libabseil-cpp"