minuitwrp: Respect TARGET_RECOVERY_PIXEL_FORMAT config.

Respect TARGET_RECOVERY_PIXEL_FORMAT config in screenshot, graphics.
This fixes other wrong theme color in minuitwrp on Xiaomi MIX 2S.

Change-Id: Ieb8480c411e2f0c72cc50ffca66943ab025e2b7e

minuitwrp/graphics.cpp

@@ -157,7 +157,11 @@ gr_surface gr_render_circle(int radius, unsigned char r, unsigned char g, unsign
     surface->height = diameter;
     surface->stride = diameter;
     surface->data = (GGLubyte*)data;
+#if defined(RECOVERY_BGRA)
+    surface->format = GGL_PIXEL_FORMAT_BGRA_8888;
+#else
     surface->format = GGL_PIXEL_FORMAT_RGBA_8888;
+#endif
 
     for(ry = -radius; ry <= radius; ++ry)
         for(rx = -radius; rx <= radius; ++rx)

minuitwrp/graphics_utils.cpp

@@ -52,7 +52,12 @@ int gr_save_screenshot(const char *dest)
     surface.height = gr_mem_surface.height;
     surface.stride = gr_mem_surface.stride;
     surface.data = img_data;
+
+#if defined(RECOVERY_BGRA)
+    surface.format = GGL_PIXEL_FORMAT_BGRA_8888;
+#else
     surface.format = GGL_PIXEL_FORMAT_RGBA_8888;
+#endif
 
     gglInit(&gl);
     gl->colorBuffer(gl, &surface);