x86, setup: move 32-bit code to .text32

Impact: cleanup

The setup code is mostly 16-bit code, but there is a small stub of
32-bit code at the end.  Move the 32-bit code to a separate segment,
.text32, to avoid scrambling the disassembly.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
diff --git a/arch/x86/boot/pmjump.S b/arch/x86/boot/pmjump.S
index 019c17a..3e0edc6 100644
--- a/arch/x86/boot/pmjump.S
+++ b/arch/x86/boot/pmjump.S
@@ -47,6 +47,7 @@
 ENDPROC(protected_mode_jump)
 
 	.code32
+	.section ".text32","ax"
 GLOBAL(in_pm32)
 	# Set up data segments for flat 32-bit mode
 	movl	%ecx, %ds