tegra132, tegra210: Fix "becasue" typo in comments

This renames "becasue" occurrences to "because".

Change-Id: I7862ce6a865cb1525ca1cef69c2eb1e90cc76a9d
Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Reviewed-on: https://review.coreboot.org/14735
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

src/soc/nvidia/tegra132/dc.c

@@ -138,7 +138,7 @@ void update_display_shift_clock_divider(struct display_controller *disp_ctrl,
  *   set up window registers and activate window except two:
  *   frame buffer base address register (WINBUF_START_ADDR) and
  *   display enable register (_DISP_DISP_WIN_OPTIONS). This is
- *   becasue framebuffer is not available until payload stage.
+ *   because framebuffer is not available until payload stage.
  */
 void update_window(const struct soc_nvidia_tegra132_config *config)
 {

src/soc/nvidia/tegra210/dc.c

@@ -138,7 +138,7 @@ void update_display_shift_clock_divider(struct display_controller *disp_ctrl,
  *   set up window registers and activate window except two:
  *   frame buffer base address register (WINBUF_START_ADDR) and
  *   display enable register (_DISP_DISP_WIN_OPTIONS). This is
- *   becasue framebuffer is not available until payload stage.
+ *   because framebuffer is not available until payload stage.
  */
 void update_window(const struct soc_nvidia_tegra210_config *config)
 {