add hdzero h7 target (betaflight#525)

* add hdzero h7 target

* remove unused driver, remove default defines

* Apply suggestions from code review

Co-authored-by: ot0tot <36753790+ot0tot@users.noreply.github.com>

---------

Co-authored-by: Eike Ahmels <eike.ahmels@zeitmechanik.net>
Co-authored-by: ot0tot <36753790+ot0tot@users.noreply.github.com>

configs/HDZEROH743R/config.h

@@ -0,0 +1,95 @@
+/*
+ * This file is part of Betaflight.
+ *
+ * Betaflight is free software. You can redistribute this software
+ * and/or modify this software under the terms of the GNU General
+ * Public License as published by the Free Software Foundation,
+ * either version 3 of the License, or (at your option) any later
+ * version.
+ *
+ * Betaflight is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this software.
+ *
+ * If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#define FC_TARGET_MCU     STM32H743
+
+#define BOARD_NAME        HDZEROH743R
+#define MANUFACTURER_ID   HDZO
+
+#define USE_GYRO
+#define USE_GYRO_SPI_ICM42688P
+#define USE_ACC
+#define USE_ACC_SPI_ICM42688P
+#define USE_FLASH
+#define USE_FLASH_W25Q128FV
+
+#define BEEPER_PIN PD12
+#define MOTOR1_PIN PC6
+#define MOTOR2_PIN PC7
+#define MOTOR3_PIN PC8
+#define MOTOR4_PIN PC9 
+#define LED_STRIP_PIN PA10
+#define UART1_TX_PIN PB6
+#define UART2_TX_PIN PA2
+#define UART5_TX_PIN PC12
+#define UART7_TX_PIN PE8
+#define UART8_TX_PIN PE1
+#define UART1_RX_PIN PB7
+#define UART2_RX_PIN PA3
+#define UART3_RX_PIN PB11
+#define UART4_RX_PIN PA1
+#define UART5_RX_PIN PD2
+#define UART7_RX_PIN PE7
+#define UART8_RX_PIN PE0
+#define I2C1_SCL_PIN PB8
+#define I2C1_SDA_PIN PB9
+#define LED0_PIN PE2
+#define SPI1_SCK_PIN PA5
+#define SPI2_SCK_PIN PB13
+#define SPI1_SDI_PIN PA6
+#define SPI2_SDI_PIN PB14
+#define SPI1_SDO_PIN PA7
+#define SPI2_SDO_PIN PB15
+#define ADC_VBAT_PIN PC0
+#define ADC_RSSI_PIN PC1
+#define ADC_CURR_PIN PC2
+#define FLASH_CS_PIN PB12
+#define GYRO_1_EXTI_PIN PC13
+#define GYRO_1_CS_PIN PB4
+#define GYRO_2_EXTI_PIN PA15
+#define GYRO_2_CS_PIN PB3
+
+#define TIMER_PIN_MAPPING \
+    TIMER_PIN_MAP(  0, MOTOR1_PIN,  1,  0 ) /* TIM3 CH1 */ \
+    TIMER_PIN_MAP(  1, MOTOR2_PIN,  1,  1 ) /* TIM3 CH2 */ \
+    TIMER_PIN_MAP(  2, MOTOR3_PIN,  1,  2 ) /* TIM3 CH3 */ \
+    TIMER_PIN_MAP(  3, MOTOR4_PIN,  1,  3 ) /* TIM3 CH4 */ \
+    TIMER_PIN_MAP(  4, LED_STRIP_PIN,  1,  4 ) /* TIM1 CH3 */ \
+    TIMER_PIN_MAP(  5, BEEPER_PIN,  1,  -1 ) /* TIM4 CH1 */
+
+#define TIMUP3_DMA_OPT      5
+
+#define ADC1_DMA_OPT 8
+#define ADC2_DMA_OPT 9
+#define ADC3_DMA_OPT 10
+
+#define DEFAULT_DSHOT_BITBANG           DSHOT_BITBANG_ON
+
+#define SERIALRX_UART                   SERIAL_PORT_USART1
+#define DEFAULT_BLACKBOX_DEVICE         BLACKBOX_DEVICE_FLASH
+#define DEFAULT_CURRENT_METER_SOURCE    CURRENT_METER_ADC
+#define DEFAULT_VOLTAGE_METER_SOURCE    VOLTAGE_METER_ADC
+#define BEEPER_INVERTED
+#define FLASH_SPI_INSTANCE              SPI2
+#define GYRO_1_SPI_INSTANCE             SPI1
+#define GYRO_2_SPI_INSTANCE             SPI1