global: Use proper project name U-Boot

Use proper project name in comments, Kconfig, readmes.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/0dbdf0432405c1c38ffca55703b6737a48219e79.1684307818.git.michal.simek@amd.com
diff --git a/drivers/phy/marvell/comphy_cp110.c b/drivers/phy/marvell/comphy_cp110.c
index e063b51..a7e0099 100644
--- a/drivers/phy/marvell/comphy_cp110.c
+++ b/drivers/phy/marvell/comphy_cp110.c
@@ -25,7 +25,7 @@
 #define MV_SIP_COMPHY_PLL_LOCK	0x82000003
 #define MV_SIP_COMPHY_XFI_TRAIN	0x82000004
 
-/* Used to distinguish between different possible callers (U-boot/Linux) */
+/* Used to distinguish between different possible callers (U-Boot/Linux) */
 #define COMPHY_CALLER_UBOOT			(0x1 << 21)
 
 #define COMPHY_FW_MODE_FORMAT(mode)		((mode) << 12)