[FL-1196] Targets: add F6 (#427)

* Targets: add F6
* F6: Update linker script for use with internal storage
* F6: synchronize with F5, add all changes arriving in V9 board, update cube project. Github workflow: add multi-target build, add F6 to build targets.
* CI: fix full assembly
* CI: better artifact naming scheme
* CI: fix artifacts wildcard
* F6: Swap C10 - A15, vibro and sdcard detect pins

firmware/targets/f6/api-hal/api-hal-clock.c

@@ -0,0 +1,27 @@
+#include <api-hal-clock.h>
+
+#include <stm32wbxx_ll_rcc.h>
+
+void api_hal_clock_switch_to_hsi() {
+    LL_RCC_HSI_Enable( );
+
+    while(!LL_RCC_HSI_IsReady());
+
+    LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_HSI);
+    LL_RCC_SetSMPSClockSource(LL_RCC_SMPS_CLKSOURCE_HSI);
+
+    while (LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_HSI);
+}
+
+void api_hal_clock_switch_to_pll() {
+    LL_RCC_HSE_Enable();
+    LL_RCC_PLL_Enable();
+
+    while(!LL_RCC_HSE_IsReady());
+    while(!LL_RCC_PLL_IsReady());
+
+    LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_PLL);
+    LL_RCC_SetSMPSClockSource(LL_RCC_SMPS_CLKSOURCE_HSE);
+
+    while (LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_PLL);
+}