Kconfig: move CONFIG_32/64BIT to arch/Kconfig

These configs are used in multiple places so put them in a shared
Kconfig file.

Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/Kconfig b/arch/Kconfig
index 0d3cce9..f9aaf37 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -20,6 +20,12 @@
 config SYS_CACHE_SHIFT_7
 	bool
 
+config 32BIT
+	bool
+
+config 64BIT
+	bool
+
 config SYS_CACHELINE_SIZE
 	int
 	default 128 if SYS_CACHE_SHIFT_7
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index f0704d9..eb7f3ad 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -473,12 +473,6 @@
 config MIPS_TUNE_OCTEON3
 	bool
 
-config 32BIT
-	bool
-
-config 64BIT
-	bool
-
 config SWAP_IO_SPACE
 	bool
 
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index ac52c5e..6c26f91f 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -288,12 +288,6 @@
 config RISCV_ISA_A
 	def_bool y
 
-config 32BIT
-	bool
-
-config 64BIT
-	bool
-
 config DMA_ADDR_T_64BIT
 	bool
 	default y if 64BIT