board: Rename uclass to sysinfo

This uclass is intended to provide a way to obtain information about a
U-Boot board. But the concept of a U-Boot 'board' is the whole system,
not just one circuit board, meaning that 'board' is something of a
misnomer for this uclass.

In addition, the name 'board' is a bit overused in U-Boot and we want to
use the same uclass to provide SMBIOS information.

The obvious name is 'system' but that is so vague as to be meaningless.
Use 'sysinfo' instead, since this uclass is aimed at providing information
on the system.

Rename everything accordingly.

Note: Due to the patch delta caused by the symbol renames, this patch
shows some renamed files as being deleted in one place and created in
another.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/drivers/sysinfo/Kconfig b/drivers/sysinfo/Kconfig
new file mode 100644
index 0000000..3914150
--- /dev/null
+++ b/drivers/sysinfo/Kconfig
@@ -0,0 +1,25 @@
+menuconfig SYSINFO
+	bool "Device System Information"
+	help
+	  Support methods to query hardware configurations from internal
+	  mechanisms (e.g. reading GPIO values, determining the presence of
+	  devices on busses, etc.). This enables the usage of U-Boot with
+	  modular board architectures.
+
+if SYSINFO
+
+config SPL_SYSINFO
+	depends on SPL_DM
+	bool "Enable board driver support in SPL"
+
+config SYSINFO_GAZERBEAM
+	bool "Enable sysinfo driver for the Gazerbeam board"
+	help
+	  Support querying device information for the gdsys Gazerbeam board.
+
+config SYSINFO_SANDBOX
+	bool "Enable sysinfo driver for the Sandbox board"
+	help
+	  Support querying device information for the Sandbox boards.
+
+endif