semihosting: Move hw/semihosting/ -> semihosting/

With the exception of hw/core/, the hw/ directory only contains
device models used in system emulation. Semihosting is also used
by user emulation. As a generic feature, move it out of hw/ directory.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20210226131356.3964782-3-f4bug@amsat.org>
Message-Id: <20210305135451.15427-3-alex.bennee@linaro.org>

Kconfig

@@ -2,3 +2,4 @@ source Kconfig.host
 source backends/Kconfig
 source accel/Kconfig
 source hw/Kconfig
+source semihosting/Kconfig

MAINTAINERS

@@ -3249,7 +3249,7 @@ F: qapi/rdma.json
 Semihosting
 M: Alex Bennée <alex.bennee@linaro.org>
 S: Maintained
-F: hw/semihosting/
+F: semihosting/
 F: include/semihosting/
 
 Multi-process QEMU

hw/Kconfig

@@ -31,7 +31,6 @@ source remote/Kconfig
 source rtc/Kconfig
 source scsi/Kconfig
 source sd/Kconfig
-source semihosting/Kconfig
 source smbios/Kconfig
 source ssi/Kconfig
 source timer/Kconfig

hw/meson.build

@@ -30,7 +30,6 @@ subdir('rdma')
 subdir('rtc')
 subdir('scsi')
 subdir('sd')
-subdir('semihosting')
 subdir('smbios')
 subdir('ssi')
 subdir('timer')

meson.build

@@ -1951,6 +1951,7 @@ subdir('migration')
 subdir('monitor')
 subdir('net')
 subdir('replay')
+subdir('semihosting')
 subdir('hw')
 subdir('accel')
 subdir('plugins')