drm/amd: Fix a typo in two different sentences

s/defintion/definition/ .....two different places.
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/include/atombios.h

@@ -1987,9 +1987,9 @@ typedef struct _PIXEL_CLOCK_PARAMETERS_V6
 #define PIXEL_CLOCK_V6_MISC_HDMI_BPP_MASK           0x0c
 #define PIXEL_CLOCK_V6_MISC_HDMI_24BPP              0x00
 #define PIXEL_CLOCK_V6_MISC_HDMI_36BPP              0x04
-#define PIXEL_CLOCK_V6_MISC_HDMI_36BPP_V6           0x08    //for V6, the correct defintion for 36bpp should be 2 for 36bpp(2:1)
+#define PIXEL_CLOCK_V6_MISC_HDMI_36BPP_V6           0x08    //for V6, the correct definition for 36bpp should be 2 for 36bpp(2:1)
 #define PIXEL_CLOCK_V6_MISC_HDMI_30BPP              0x08
-#define PIXEL_CLOCK_V6_MISC_HDMI_30BPP_V6           0x04    //for V6, the correct defintion for 30bpp should be 1 for 36bpp(5:4)
+#define PIXEL_CLOCK_V6_MISC_HDMI_30BPP_V6           0x04    //for V6, the correct definition for 30bpp should be 1 for 36bpp(5:4)
 #define PIXEL_CLOCK_V6_MISC_HDMI_48BPP              0x0c
 #define PIXEL_CLOCK_V6_MISC_REF_DIV_SRC             0x10
 #define PIXEL_CLOCK_V6_MISC_GEN_DPREFCLK            0x40