smbios: Fix BIOS Characteristics Extension Byte 2

We currently define the EFI support of an SMBIOS table as the third bit of
"BIOS Characteristics Extension Byte 1". The latest DMTF spec defines it
on "BIOS Characteristics Extension Byte 2".

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>

Remove superfluous assignment.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
diff --git a/include/smbios.h b/include/smbios.h
index ffeefb4..fc49fc1 100644
--- a/include/smbios.h
+++ b/include/smbios.h
@@ -60,7 +60,7 @@
 #define BIOS_CHARACTERISTICS_SELECTABLE_BOOT	(1 << 16)
 
 #define BIOS_CHARACTERISTICS_EXT1_ACPI		(1 << 0)
-#define BIOS_CHARACTERISTICS_EXT1_UEFI		(1 << 3)
+#define BIOS_CHARACTERISTICS_EXT2_UEFI		(1 << 3)
 #define BIOS_CHARACTERISTICS_EXT2_TARGET	(1 << 2)
 
 struct __packed smbios_type0 {