cpu/x86 asm: Just use the correct op suffix

LLVM AS doesn't support as much GNU junk extensions, data16/32
is almost never needed in truth if we just use the correct op
suffix. So do that here, fixes clang/llvm builds with the
integrated-as toggled on.

Change-Id: I6095d03d0289b418a49a10f135de5eb0e117cae0
Also-by: Damien Zammit <damien@zamaudio.com>
Signed-off-by: Damien Zammit <damien@zamaudio.com>
Reviewed-on: https://review.coreboot.org/21218
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

src/cpu/x86/lapic/secondary.S

@@ -31,7 +31,7 @@ _secondary_start:
 	movw	%cs, %ax
 	movw	%ax, %ds
 
-	data32	lgdt	gdtaddr  - _secondary_start
+	lgdtl	gdtaddr  - _secondary_start
 
 	movl	%cr0, %eax
 	andl	$0x7FFAFFD1, %eax /* PG,AM,WP,NE,TS,EM,MP = 0 */

src/cpu/x86/sipi_vector.S

@@ -79,7 +79,7 @@ _start:
 	movl	$(gdtaddr), %ebx
 	sub	$(_start), %ebx
 
-	data32 lgdt (%ebx)
+	lgdtl	(%ebx)
 
 	movl	%cr0, %eax
 	andl	$~CR0_CLEAR_FLAGS, %eax

src/cpu/x86/smm/smm_stub.S

@@ -68,7 +68,7 @@ fallback_stack_top:
 .global _start
 _start:
 	movl	$(smm_relocate_gdt), %ebx
-	data32	lgdt (%ebx)
+	lgdtl	(%ebx)
 
 	movl	%cr0, %eax
 	andl	$~CR0_CLEAR_FLAGS, %eax
@@ -76,7 +76,7 @@ _start:
 	movl	%eax, %cr0
 
 	/* Enable protected mode */
-	data32	ljmp $0x8, $smm_trampoline32
+	ljmpl	$0x8, $smm_trampoline32
 
 .align 4
 smm_relocate_gdt:

src/cpu/x86/smm/smmhandler.S

@@ -110,7 +110,7 @@ smm_handler_start:
 untampered_lapic:
 #endif
 	movw    $(smm_gdtptr16 - smm_handler_start + SMM_HANDLER_OFFSET), %bx
-	data32  lgdt %cs:(%bx)
+	lgdtl	%cs:(%bx)
 
 	movl    %cr0, %eax
 	andl    $0x7FFAFFD1, %eax /* PG,AM,WP,NE,TS,EM,MP = 0 */
@@ -118,7 +118,7 @@ untampered_lapic:
 	movl    %eax, %cr0
 
 	/* Enable protected mode */
-	data32  ljmp    $0x08, $1f
+	ljmpl	$0x08, $1f
 
 .code32
 1: