chore(deps): update cortex-m requirement from 0.6.0 to 0.7.0

[dependabot-preview[bot]]

Updates the requirements on cortex-m to permit the latest version.

Changelog

Sourced from cortex-m's changelog.

[v0.6.4] - 2020-10-26

Changed

• MSRV bumped to 1.36.0 due to aligned dependency.

Fixed

• Drop AT&T syntax from inline asm, which was causing miscompilations with newer versions of the compiler.

[v0.6.3] - 2020-07-20

Added

• Initial Cortex-M Security Extension support for armv8m
• UDF intrinsic
• Methods to enable/disable exceptions in SCB

Fixed

• Fix bug in asm::delay not updating status clobber flags
• Swapped to llvm_asm! to support inline assembly on new nightlies
• Our precompiled assembly routines have additional debug information
• ITM is_fifo_ready improved to support armv8
• Cache enabling moved to pre-built assembly routines to prevent possible undefined behaviour

[v0.6.2] - 2020-01-12

Added

• Allow writing to the CONTROL register via register::control::write
• Add DWT::unlock() for a safe way to unlock the DWT

Deprecation

• Deprecated incorrectly included registers (BASPRI, BASEPRI_MAX, FAULTMASK) on thumbv8.base

[v0.6.1] - 2019-08-21

Fixed

• Better Debug, PartialEq and Eq for more types
• The delay function is fixed for Cortex-M0 MCUs

Added

• Static version of system_reset as system_reset2
• Now uses links = "cortex-m" to not link multiple versions of the crate
• Masking of the NVIC is added NVIC::{mask,unmask}

Commits

• See full diff in compare view

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