semihosting/meson: Build config.o and console.o once

config.c and console.c don't use any target specific
headers anymore, move them from specific_ss[] to
system_ss[] so they are built once, but will also be
linked once, removing global symbol clash in a single
QEMU binary.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250103171037.11265-6-philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250116160306.1709518-8-alex.bennee@linaro.org>

semihosting/meson.build

@@ -4,13 +4,16 @@ specific_ss.add(when: 'CONFIG_SEMIHOSTING', if_true: files(
 ))
 
 specific_ss.add(when: ['CONFIG_SEMIHOSTING', 'CONFIG_SYSTEM_ONLY'], if_true: files(
-  'config.c',
-  'console.c',
   'uaccess.c',
 ))
 
 common_ss.add(when: ['CONFIG_SEMIHOSTING', 'CONFIG_SYSTEM_ONLY'], if_false: files('stubs-all.c'))
-system_ss.add(when: ['CONFIG_SEMIHOSTING'], if_false: files('stubs-system.c'))
+system_ss.add(when: ['CONFIG_SEMIHOSTING'], if_true: files(
+  'config.c',
+  'console.c',
+), if_false: files(
+  'stubs-system.c',
+))
 
 specific_ss.add(when: ['CONFIG_ARM_COMPATIBLE_SEMIHOSTING'],
 		if_true: files('arm-compat-semi.c'))