sh: Add a new mach type for alpha project boards.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/boards/Kconfig

@@ -3,6 +3,9 @@ menu "Board support"
 config SOLUTION_ENGINE
 	bool
 
+config SH_ALPHA_BOARD
+	bool
+
 config SH_SOLUTION_ENGINE
 	bool "SolutionEngine"
 	select SOLUTION_ENGINE

arch/sh/tools/mach-types

@@ -9,6 +9,7 @@ SE			SH_SOLUTION_ENGINE
 HIGHLANDER		SH_HIGHLANDER
 RTS7751R2D		SH_RTS7751R2D
 RSK			SH_RSK
+ALPHA_BOARD		SH_ALPHA_BOARD
 
 #
 # List of companion chips / MFDs.