s390/nospec: rename assembler generated expoline thunks

The assembler version of the expoline thunk use the naming
__s390x_indirect_jump_rxuse_ry while the compiler generates names
like __s390_indirect_jump_rx_use_ry. Make the naming more consistent.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

arch/s390/include/asm/nospec-insn.h

@@ -32,23 +32,23 @@ _LC_BR_R1 = __LC_BR_R1
 	.endm
 
 	.macro __THUNK_PROLOG_BR r1,r2
-	__THUNK_PROLOG_NAME __s390x_indirect_jump_r\r2\()use_r\r1
+	__THUNK_PROLOG_NAME __s390_indirect_jump_r\r2\()use_r\r1
 	.endm
 
 	.macro __THUNK_PROLOG_BC d0,r1,r2
-	__THUNK_PROLOG_NAME __s390x_indirect_branch_\d0\()_\r2\()use_\r1
+	__THUNK_PROLOG_NAME __s390_indirect_branch_\d0\()_\r2\()use_\r1
 	.endm
 
 	.macro __THUNK_BR r1,r2
-	jg	__s390x_indirect_jump_r\r2\()use_r\r1
+	jg	__s390_indirect_jump_r\r2\()use_r\r1
 	.endm
 
 	.macro __THUNK_BC d0,r1,r2
-	jg	__s390x_indirect_branch_\d0\()_\r2\()use_\r1
+	jg	__s390_indirect_branch_\d0\()_\r2\()use_\r1
 	.endm
 
 	.macro __THUNK_BRASL r1,r2,r3
-	brasl	\r1,__s390x_indirect_jump_r\r3\()use_r\r2
+	brasl	\r1,__s390_indirect_jump_r\r3\()use_r\r2
 	.endm
 
 	.macro	__DECODE_RR expand,reg,ruse