Fix arm/arch_string.S for Clang

src/system/libroot/posix/string/arch/arm/arch_string.S

@@ -115,16 +115,16 @@ FUNCTION(memcpy):
 	msr		CPSR_f, r12				// move into NZCV fields in CPSR
 
 	// move as many bytes as necessary to get the dst aligned
-	ldrvsb	r3, [r1], #1			// V set
-	ldrcsh	r4, [r1], #2			// C set
+	ldrbvs	r3, [r1], #1			// V set
+	ldrhcs	r4, [r1], #2			// C set
 	ldreq	r5, [r1], #4			// Z set
 
-	strvsb	r3, [r0], #1
-	strcsh	r4, [r0], #2
+	strbvs	r3, [r0], #1
+	strhcs	r4, [r0], #2
 	streq	r5, [r0], #4
 
-	ldmmiia	r1!, {r3-r4}			// N set
-	stmmiia	r0!, {r3-r4}
+	ldmiami	r1!, {r3-r4}			// N set
+	stmiami	r0!, {r3-r4}
 
 	// fix the remaining len
 	sub		r2, r2, r12, lsr #28