add align instruction for .init .fini section

crti and crtn will added for exe, dso; we found these section is not
aligned, in some case, will cause ld.musl crash when load dso.
Signed-off-by: Nhhj <huanghuijin@huawei.com>

porting/linux/user/crt/aarch64/crti.s

@@ -3,6 +3,7 @@
 .section .init
 .global _init
 .type _init,%function
+.balign 4
 _init:
 	stp x29,x30,[sp,-16]!
 	mov x29,sp
@@ -10,6 +11,7 @@ _init:
 .section .fini
 .global _fini
 .type _fini,%function
+.balign 4
 _fini:
 	stp x29,x30,[sp,-16]!
 	mov x29,sp

porting/linux/user/crt/arm/crti.s

@@ -5,11 +5,13 @@
 .section .init
 .global _init
 .type _init,%function
+.balign 4
 _init:
 	push {r0,lr}
 
 .section .fini
 .global _fini
 .type _fini,%function
+.balign 4
 _fini:
 	push {r0,lr}