[S390] sparse: fix sparse warnings in math-emu

Fix three sparse warnings in math-emu / sysinfo:

arch/s390/kernel/sysinfo.c:448:17: error: return expression in void function
arch/s390/kernel/sysinfo.c:445:25: warning: shift too big (32) for type unsigned int
arch/s390/kernel/sysinfo.c:445:25: warning: shift too big (32) for type unsigned int
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

arch/s390/include/asm/sfp-util.h

@@ -72,6 +72,6 @@ extern unsigned long __udiv_qrnnd (unsigned int *, unsigned int,
 
 #define UDIV_NEEDS_NORMALIZATION 0
 
-#define abort() return 0
+#define abort() BUG()
 
 #define __BYTE_ORDER __BIG_ENDIAN

arch/s390/kernel/sysinfo.c

@@ -442,7 +442,7 @@ void s390_adjust_jiffies(void)
 		 */
 		FP_UNPACK_SP(SA, &fmil);
 		if ((info->capability >> 23) == 0)
-			FP_FROM_INT_S(SB, info->capability, 32, int);
+			FP_FROM_INT_S(SB, (long) info->capability, 64, long);
 		else
 			FP_UNPACK_SP(SB, &info->capability);
 		FP_DIV_S(SR, SA, SB);