sh: Change __HAVE_SHARED__ to __PIC__

Generate PIC relocations when __PIC__ is defined rather than
__HAVE_SHARED__ (like other architectures).

Signed-off-by: Peter Griffin <pgriffin@mpc-data.co.uk>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>

libc/sysdeps/linux/sh/clone.S

@@ -26,7 +26,7 @@
 #include <bits/sysnum.h>
 
 
-#ifdef __HAVE_SHARED__ 
+#ifdef __PIC__
 #define PLTJMP(_x)	_x@PLT
 #else
 #define PLTJMP(_x)	_x
@@ -99,7 +99,7 @@ clone:
 
 	/* we are done, passing the return value through r0  */
 	mov.l	.L1, r1
-#ifdef __HAVE_SHARED__ 
+#ifdef __PIC__
 	mov.l	r12, @-r15
 	sts.l	pr, @-r15
 	mov	r0, r4

libc/sysdeps/linux/sh/setjmp.S

@@ -77,7 +77,7 @@ __sigsetjmp_intern:
 	mov.l	r9, @-r4
 	mov.l	r8, @-r4
 
-#ifdef __HAVE_SHARED__ 
+#ifdef __PIC__
 	mov.l	.LG, r2
 	mova	.LG, r0
 	add	r0, r2

libc/sysdeps/linux/sh/syscall_error.S

@@ -3,7 +3,7 @@ __syscall_error:
 	/* Call errno_location, store '-r4' in errno and return -1 */
 	mov.l	r12, @-r15
 	sts.l	pr, @-r15
-#ifdef __HAVE_SHARED__ 
+#ifdef __PIC__
 	mova	.LG, r0
 	mov.l	.LG, r12
 	add	r0, r12
@@ -27,7 +27,7 @@ __syscall_error:
 
 	.align	4
 
-#ifdef __HAVE_SHARED__ 
+#ifdef __PIC__
 1:	.long   __errno_location@GOT
 .LG:	.long	_GLOBAL_OFFSET_TABLE_
 #else