board: asus: transformer-t30: enable I2C_MUX only for TF700T

Of all T30 transformers, only the TF700T uses GPIO i2c muxing
for one of the i2c lines and needs this driver to properly work.
Disable this configuration for all transformers except tf700t
in their fragments.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>

board/asus/transformer-t30/configs/p1801-t.config

@@ -1,2 +1,3 @@
 CONFIG_DEFAULT_DEVICE_TREE="tegra30-asus-p1801-t"
+# CONFIG_I2C_MUX is not set
 CONFIG_USB_GADGET_PRODUCT_NUM=0x4cb0

board/asus/transformer-t30/configs/tf201.config

@@ -1,2 +1,3 @@
 CONFIG_DEFAULT_DEVICE_TREE="tegra30-asus-tf201"
+# CONFIG_I2C_MUX is not set
 CONFIG_USB_GADGET_PRODUCT_NUM=0x4d00

board/asus/transformer-t30/configs/tf300t.config

@@ -1,2 +1,3 @@
 CONFIG_DEFAULT_DEVICE_TREE="tegra30-asus-tf300t"
+# CONFIG_I2C_MUX is not set
 CONFIG_USB_GADGET_PRODUCT_NUM=0x4d00

board/asus/transformer-t30/configs/tf300tg.config

@@ -1,2 +1,3 @@
 CONFIG_DEFAULT_DEVICE_TREE="tegra30-asus-tf300tg"
+# CONFIG_I2C_MUX is not set
 CONFIG_USB_GADGET_PRODUCT_NUM=0x4c80

board/asus/transformer-t30/configs/tf300tl.config

@@ -1,2 +1,3 @@
 CONFIG_DEFAULT_DEVICE_TREE="tegra30-asus-tf300tl"
+# CONFIG_I2C_MUX is not set
 CONFIG_USB_GADGET_PRODUCT_NUM=0x4d00

board/asus/transformer-t30/configs/tf600t.config

@@ -1,5 +1,6 @@
 CONFIG_DEFAULT_DEVICE_TREE="tegra30-asus-tf600t"
 CONFIG_BOOTCOMMAND="setenv gpio_button 222; if run check_button; then poweroff; fi; setenv gpio_button 132; if run check_button; then echo Starting SPI flash update ...; run update_spi; fi; run bootcmd_usb0; run bootcmd_mmc1; run bootcmd_mmc0; poweroff;"
+# CONFIG_I2C_MUX is not set
 CONFIG_TEGRA20_SLINK=y
 CONFIG_SPI_FLASH_WINBOND=y
 CONFIG_USB_GADGET_PRODUCT_NUM=0x4d00