rockchip: rk3399: grf: Fix enum typos for UART2

In the GRF header file, some instances of UART2 pinmux are prefixed with
"GRF_UART2DBG" while others have "GRF_UART2DGB".

Since UART2 is the default console UART and used for debugging, it is
more likely the name should be UART2DBG.

Fix the ones that are wrong.

Fixes: a2c08df3813b ("pinctrl: add driver for rk3399")
Fixes: fa72de10452c ("rockchip: arm64: rk3399: move grf register definitions to grf_rk3399.h")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de>
Reviewed-by: Paul Kocialkowski <paulk@sys-base.io>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/include/asm/arch-rockchip/grf_rk3399.h b/arch/arm/include/asm/arch-rockchip/grf_rk3399.h
index dd89cd2..e6125d6 100644
--- a/arch/arm/include/asm/arch-rockchip/grf_rk3399.h
+++ b/arch/arm/include/asm/arch-rockchip/grf_rk3399.h
@@ -466,18 +466,18 @@
 	/*  GRF_GPIO4C_IOMUX */
 	GRF_GPIO4C0_SEL_SHIFT   = 0,
 	GRF_GPIO4C0_SEL_MASK    = 3 << GRF_GPIO4C0_SEL_SHIFT,
-	GRF_UART2DGBB_SIN       = 2,
+	GRF_UART2DBGB_SIN       = 2,
 	GRF_HDMII2C_SCL         = 3,
 	GRF_GPIO4C1_SEL_SHIFT   = 2,
 	GRF_GPIO4C1_SEL_MASK    = 3 << GRF_GPIO4C1_SEL_SHIFT,
-	GRF_UART2DGBB_SOUT      = 2,
+	GRF_UART2DBGB_SOUT      = 2,
 	GRF_HDMII2C_SDA         = 3,
 	GRF_GPIO4C2_SEL_SHIFT   = 4,
 	GRF_GPIO4C2_SEL_MASK    = 3 << GRF_GPIO4C2_SEL_SHIFT,
 	GRF_PWM_0               = 1,
 	GRF_GPIO4C3_SEL_SHIFT   = 6,
 	GRF_GPIO4C3_SEL_MASK    = 3 << GRF_GPIO4C3_SEL_SHIFT,
-	GRF_UART2DGBC_SIN       = 1,
+	GRF_UART2DBGC_SIN       = 1,
 	GRF_GPIO4C4_SEL_SHIFT   = 8,
 	GRF_GPIO4C4_SEL_MASK    = 3 << GRF_GPIO4C4_SEL_SHIFT,
 	GRF_UART2DBGC_SOUT      = 1,