highbd_pickrst_neon.c: fix MSVC build

Use vld1_s32() rather than an array initializer; neon types are defined
as a union with MSVC. Fixes:

av1\encoder\arm\neon\highbd_pickrst_neon.c(753,33): error C2078: too many initializers

Change-Id: I9b3cc7cfe76607642c8b2a8701e0f3f93c7d00e1

av1/encoder/arm/neon/highbd_pickrst_neon.c

diff --git a/av1/encoder/arm/neon/highbd_pickrst_neon.c b/av1/encoder/arm/neon/highbd_pickrst_neon.c
index 5a1849d..b0eab50 100644
--- a/av1/encoder/arm/neon/highbd_pickrst_neon.c
+++ b/av1/encoder/arm/neon/highbd_pickrst_neon.c
@@ -750,7 +750,7 @@
   int64x2_t sse_s64 = vdupq_n_s64(0);
 
   if (params->r[0] > 0 && params->r[1] > 0) {
-    int32x2_t xq_v = { xq[0], xq[1] };
+    int32x2_t xq_v = vld1_s32(xq);
     int32x2_t xq_sum_v = vshl_n_s32(vpadd_s32(xq_v, xq_v), 4);
 
     do {