Revert "arm: Remove unregister MACH_TYPE_xxx uses"

This reverts commit 70b26cd057f42c7126088b49d4285955c8a00eae.

This is not a strict revert as it is easier to fix
board/atmark-techno/armadillo-800eva/armadillo-800eva.c to now the
correct name (same value) than to revert that change too.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/board/ti/omap5_uevm/evm.c b/board/ti/omap5_uevm/evm.c
index d84ec57..b5d5ba9 100644
--- a/board/ti/omap5_uevm/evm.c
+++ b/board/ti/omap5_uevm/evm.c
@@ -138,6 +138,7 @@
 int board_init(void)
 {
 	gpmc_init();
+	gd->bd->bi_arch_number = MACH_TYPE_OMAP5_SEVM;
 	gd->bd->bi_boot_params = (0x80000000 + 0x100); /* boot param addr */
 
 	tca642x_set_inital_state(CONFIG_SYS_I2C_TCA642X_ADDR, tca642x_init);