ARM: UniPhier: update the vendor name of UniPhier in Kconfig

The business for UniPhier Soc family has been transferred from
Panasonic Corporation to Socionext Inc.

Update the SoC select menu in Kconfig.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig
index ba43019..86fb36b 100644
--- a/drivers/i2c/Kconfig
+++ b/drivers/i2c/Kconfig
@@ -63,13 +63,13 @@
 	depends on ARCH_UNIPHIER && DM_I2C
 	default y
 	help
-	  Support for Panasonic UniPhier I2C controller driver.  This I2C
-	  controller is used on PH1-LD4, PH1-sLD8 or older UniPhier SoCs.
+	  Support for UniPhier I2C controller driver.  This I2C controller
+	  is used on PH1-LD4, PH1-sLD8 or older UniPhier SoCs.
 
 config SYS_I2C_UNIPHIER_F
 	bool "UniPhier FIFO-builtin I2C driver"
 	depends on ARCH_UNIPHIER && DM_I2C
 	default y
 	help
-	  Support for Panasonic UniPhier FIFO-builtin I2C controller driver.
+	  Support for UniPhier FIFO-builtin I2C controller driver.
 	  This I2C controller is used on PH1-Pro4 or newer UniPhier SoCs.