arm64: dts: qcom: sc7180-trogdor: Remove fp control pins in prep for coachz

Removed the pinctrl and pin{mux,conf} for the control pins because:
1. The only need for them is for userspace control via flash_fp_mcu
2. cros-ec doesn't know what to do with them, and even if it did,
   it would interfere with flash_fp_mcu at the most inopportune times

Since we're not using hogs, we rely on AP firmware to set all the
control pins correctly.
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Cc: Stephen Boyd <swboyd@chromium.org>
Cc: Craig Hesling <hesling@chromium.org>
Signed-off-by: Alexandru M Stan <amstan@chromium.org>
[dianders: adjusted since coachz isn't upstream yet]
Reviewed-by; Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20210301133318.v2.7.Ifd7b86f826b18410eada75758a7bca1eebfa336d@changeidSigned-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi

@@ -810,7 +810,7 @@ cros_ec_fp: ec@0 {
 		interrupt-parent = <&tlmm>;
 		interrupts = <4 IRQ_TYPE_LEVEL_LOW>;
 		pinctrl-names = "default";
-		pinctrl-0 = <&fp_to_ap_irq_l>, <&fp_rst_l>, <&fpmcu_boot0>, <&fpmcu_sel>;
+		pinctrl-0 = <&fp_to_ap_irq_l>;
 		spi-max-frequency = <3000000>;
 	};
 };
@@ -1235,48 +1235,6 @@ pinconf {
 		};
 	};
 
-	fpmcu_boot0: fpmcu-boot0 {
-		pinmux {
-			pins = "gpio10";
-			function = "gpio";
-		};
-
-		pinconf {
-			pins = "gpio10";
-			bias-disable;
-			drive-strength = <2>;
-			output-low;
-		};
-	};
-
-	fpmcu_sel: fpmcu-sel {
-		pinmux {
-			pins = "gpio22";
-			function = "gpio";
-		};
-
-		pinconf {
-			pins = "gpio22";
-			bias-disable;
-			drive-strength = <2>;
-			output-high;
-		};
-	};
-
-	fp_rst_l: fp-rst-l {
-		pinmux {
-			pins = "gpio5";
-			function = "gpio";
-		};
-
-		pinconf {
-			pins = "gpio5";
-			bias-disable;
-			drive-strength = <2>;
-			output-high;
-		};
-	};
-
 	fp_to_ap_irq_l: fp-to-ap-irq-l {
 		pinmux {
 			pins = "gpio4";
@@ -1292,7 +1250,6 @@ pinconf {
 		};
 	};
 
-
 	h1_ap_int_odl: h1-ap-int-odl {
 		pinmux {
 			pins = "gpio42";