um: merge HOST_... of registers common on i386 and amd64

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
diff --git a/arch/x86/um/ptrace_32.c b/arch/x86/um/ptrace_32.c
index a174fde..3b949daa 100644
--- a/arch/x86/um/ptrace_32.c
+++ b/arch/x86/um/ptrace_32.c
@@ -51,13 +51,13 @@
 #define FLAG_MASK 0x00044dd5
 
 static const int reg_offsets[] = {
-	[EBX] = HOST_EBX,
-	[ECX] = HOST_ECX,
-	[EDX] = HOST_EDX,
-	[ESI] = HOST_ESI,
-	[EDI] = HOST_EDI,
-	[EBP] = HOST_EBP,
-	[EAX] = HOST_EAX,
+	[EBX] = HOST_BX,
+	[ECX] = HOST_CX,
+	[EDX] = HOST_DX,
+	[ESI] = HOST_SI,
+	[EDI] = HOST_DI,
+	[EBP] = HOST_BP,
+	[EAX] = HOST_AX,
 	[DS] = HOST_DS,
 	[ES] = HOST_ES,
 	[FS] = HOST_FS,