csky: delay: Add function alignment

Specify 8 bytes alignment for the function __delay or we get bad
delay like udelay(10) will be 25us in fact.

Signed-off-by: Jialu Xu <[e-mail]>
Signed-off-by: Guo Ren <[e-mail]>

arch/csky/lib/delay.c

···
 #include <linux/init.h>
 #include <linux/delay.h>
 
-void __delay(unsigned long loops)
+void __aligned(8) __delay(unsigned long loops)
 {
 	asm volatile (
 		"mov r0, r0\n"