drm_hwcomposer: fix shift compiling error with AOSP

which reported like this:
    08:58:21 external/drm_hwcomposer/hwc2_device/HwcDisplay.cpp:76:26: error: constexpr variable 'kOne' must be initialized by a constant expression
    08:58:21       constexpr uint64_t kOne = 1L << 32; /* 1.0 in s31.32 format */
    08:58:21                          ^      ~~~~~~~~
    08:58:21 external/drm_hwcomposer/hwc2_device/HwcDisplay.cpp:76:36: note: shift count 32 >= width of type 'long' (32 bits)
    08:58:21       constexpr uint64_t kOne = 1L << 32; /* 1.0 in s31.32 format */
    08:58:21                                    ^
    08:58:21 external/drm_hwcomposer/hwc2_device/HwcDisplay.cpp:76:36: error: shift count >= width of type [-Werror,-Wshift-count-overflow]
    08:58:21       constexpr uint64_t kOne = 1L << 32; /* 1.0 in s31.32 format */
    08:58:21                                    ^  ~~
    08:58:21 external/drm_hwcomposer/hwc2_device/HwcDisplay.cpp:697:71: error: shift count >= width of type [-Werror,-Wshift-count-overflow]
    08:58:21           auto value = uint64_t(matrix[i * kInCtmRows + j] * float(1L << 32));
    08:58:21                                                                       ^  ~~
    08:58:21 3 errors generated.

Test: build passes and could boot to home screen

Change-Id: Ia9dfcd842a186dfbe279da1793363c6a25df0e2f
Signed-off-by: Yongqin Liu <yongqin.liu@linaro.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/hwc2_device/HwcDisplay.cpp b/hwc2_device/HwcDisplay.cpp
index 13da016..d335d72 100644
--- a/hwc2_device/HwcDisplay.cpp
+++ b/hwc2_device/HwcDisplay.cpp
@@ -73,7 +73,7 @@ void HwcDisplay::SetColorMarixToIdentity() {
   color_matrix_ = std::make_shared<drm_color_ctm>();
   for (int i = 0; i < kCtmCols; i++) {
     for (int j = 0; j < kCtmRows; j++) {
-      constexpr uint64_t kOne = 1L << 32; /* 1.0 in s31.32 format */
+      constexpr uint64_t kOne = (1ULL << 32); /* 1.0 in s31.32 format */
       color_matrix_->matrix[i * kCtmRows + j] = (i == j) ? kOne : 0;
     }
   }
@@ -694,7 +694,7 @@ HWC2::Error HwcDisplay::SetColorTransform(const float *matrix, int32_t hint) {
         for (int j = 0; j < kCtmRows; j++) {
           constexpr int kInCtmRows = 4;
           /* HAL matrix type is float, but DRM expects a s31.32 fix point */
-          auto value = uint64_t(matrix[i * kInCtmRows + j] * float(1L << 32));
+          auto value = uint64_t(matrix[i * kInCtmRows + j] * float(1ULL << 32));
           color_matrix_->matrix[i * kCtmRows + j] = value;
         }
       }