drm/exynos: Rename Exynos to lowercase

Fix up inconsistent usage of upper and lowercase letters in "Exynos"
name.

"EXYNOS" is not an abbreviation but a regular trademarked name.
Therefore it should be written with lowercase letters starting with
capital letter.

The lowercase "Exynos" name is promoted by its manufacturer Samsung
Electronics Co., Ltd., in advertisement materials and on website.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

drivers/gpu/drm/exynos/Kconfig

 # SPDX-License-Identifier: GPL-2.0-only
 config DRM_EXYNOS
-	tristate "DRM Support for Samsung SoC EXYNOS Series"
+	tristate "DRM Support for Samsung SoC Exynos Series"
 	depends on OF && DRM && (ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || ARCH_MULTIPLATFORM || COMPILE_TEST)
 	depends on MMU
 	select DRM_KMS_HELPER
 	select VIDEOMODE_HELPERS
 	select SND_SOC_HDMI_CODEC if SND_SOC
 	help
-	  Choose this option if you have a Samsung SoC EXYNOS chipset.
+	  Choose this option if you have a Samsung SoC Exynos chipset.
 	  If M is selected the module will be called exynosdrm.
 
 if DRM_EXYNOS
@@ -62,7 +62,7 @@ config DRM_EXYNOS_DSI
 	  This enables support for Exynos MIPI-DSI device.
 
 config DRM_EXYNOS_DP
-	bool "EXYNOS specific extensions for Analogix DP driver"
+	bool "Exynos specific extensions for Analogix DP driver"
 	depends on DRM_EXYNOS_FIMD || DRM_EXYNOS7_DECON
 	select DRM_ANALOGIX_DP
 	default DRM_EXYNOS

include/uapi/drm/exynos_drm.h

@@ -394,7 +394,7 @@ struct drm_exynos_ioctl_ipp_commit {
 #define DRM_IOCTL_EXYNOS_IPP_COMMIT		DRM_IOWR(DRM_COMMAND_BASE + \
 		DRM_EXYNOS_IPP_COMMIT, struct drm_exynos_ioctl_ipp_commit)
 
-/* EXYNOS specific events */
+/* Exynos specific events */
 #define DRM_EXYNOS_G2D_EVENT		0x80000000
 #define DRM_EXYNOS_IPP_EVENT		0x80000002