arm: cosmetics: Consistently use lowercase for shift operators

Signed-off-by: Martin Storsjö <martin@martin.st>

libavcodec/arm/mlpdsp_armv5te.S

@@ -338,7 +338,7 @@ T       orr     AC0, AC0, AC1
 .endm
 
 .macro switch_on_fir_taps  mask_minus1, shift_0, shift_8, iir_taps
-A       ldr     pc, [pc, a3, LSL #2] // firorder is in range 0-(8-iir_taps)
+A       ldr     pc, [pc, a3, lsl #2] // firorder is in range 0-(8-iir_taps)
 T       tbh     [pc, a3, lsl #1]
 0:
 A       .word   0, 70f, 71f, 72f, 73f, 74f
@@ -379,7 +379,7 @@ T       .hword  (78f - 0b) / 2
 .endm
 
 .macro switch_on_iir_taps  mask_minus1, shift_0, shift_8
-A       ldr     pc, [pc, a4, LSL #2] // irorder is in range 0-4
+A       ldr     pc, [pc, a4, lsl #2] // irorder is in range 0-4
 T       tbh     [pc, a4, lsl #1]
 0:
 A       .word   0, 60f, 61f, 62f, 63f, 64f

libavcodec/arm/synth_filter_vfp.S

@@ -124,7 +124,7 @@ function ff_synth_filter_float_vfp, export=1
         push    {r3-r7,lr}
         vpush   {s16-s31}
         ldr     lr, [P_SB_OFF]
-        add     a2, ORIG_P_SB, lr, LSL #2 @ calculate synth_buf to pass to imdct_half
+        add     a2, ORIG_P_SB, lr, lsl #2 @ calculate synth_buf to pass to imdct_half
         mov     P_SB, a2                  @ and keep a copy for ourselves
         bic     J_WRAP, lr, #63           @ mangled to make testing for wrap easier in inner loop
         sub     lr, lr, #32