Speed up pyportal by writing memory on the same access as our rotation.

ports/atmel-samd/boards/pyportal/board.c

@@ -48,7 +48,7 @@ uint8_t display_init_sequence[] = {
     0xc1, 1, 0x10,             // Power control SAP[2:0];BT[3:0]
     0xc5, 2, 0x3e, 0x28,       // VCM control
     0xc7, 1, 0x86,             // VCM control2
-    0x36, 1, 0x08,             // Memory Access Control
+    0x36, 1, 0xa8,             // Memory Access Control
     0x37, 1, 0x00,             // Vertical scroll zero
     0x3a, 1, 0x55,             // COLMOD: Pixel Format Set
     0xb1, 2, 0x00, 0x18,       // Frame Rate Control (In Normal Mode/Full Colors)
@@ -82,7 +82,7 @@ void board_init(void) {
         240, // Height
         0, // column start
         0, // row start
-        270, // rotation
+        0, // rotation
         16, // Color depth
         MIPI_COMMAND_SET_COLUMN_ADDRESS, // Set column command
         MIPI_COMMAND_SET_PAGE_ADDRESS, // Set row command